cant install react-navigation using npm [duplicate] - javascript

When trying to install the npm packages using npm i command, I am getting the following exception:
I have tried reinstalling the Node.js package and setting the proxy to off using:
set HTTP_PROXY=
set HTTPS_PROXY=
The issue is still there. What I am doing wrong?
Update:
When I run the following command:
npm install --legacy-peer-deps
The following error is displayed:

This is not related to an HTTP proxy.
You have dependency conflict (incorrect and potentially broken dependency) as it says, so try to run the command with --force, or --legacy-peer-deps. If it doesn't take effect, the temporary solution is using prior versions of the Node.js (downgrading the Node.js version) as it causes this kind of errors to happen sometimes.
Update based on the OP's update:
As you see, it fires the following error:
No matching version found for #angular/http#^9.1.4.
Take a look at angular/http page. Note that the latest version for that deprecated package is 7.2.16 while you request an upper version (e.g., ^9.1.4)! So, try to check the project dependencies and follow the raised errors in order to solve the problem.

Try this command-
npm install --save --legacy-peer-deps

First to understand the problem. Here is what I have as error:
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR!
npm ERR! While resolving: project-admin#11.0.0
npm ERR! Found: #angular/common#11.0.3
npm ERR! node_modules/#angular/common
npm ERR! #angular/common#"11.0.3" from the root project
npm ERR!
npm ERR! Could not resolve dependency:
npm ERR! peer #angular/common#"^9.1.0 || ^10.0.0" from #agm/core#3.0.0-beta.0
npm ERR! node_modules/#agm/core
npm ERR! #agm/core#"3.0.0-beta.0" from the root project
First you should start to read the problem from the bottom to the top. Here #agm/core#3.0.0-beta.0 requires angular common 9.1.0 or 10.0.0. And the top message says that the angular common found is actually 11.0.3.
(If you want to understand dependencies little bit better, here is very simple site: How npm3 Works)
dependencies — these are the essential dependencies that you rely on and call in your project’s code
devDependencies — these are your development dependencies, for example, a prettier library for formatting code
peerDependencies — if you set a peer dependency in your package.json, you are telling the person who installs your package that they need that dependency with the specified version
optionalDependencies — these dependencies are optional and failing to install them will not break the installation process
bundledDependencies — it’s an array of packages that will come bundled with your package. This is useful when some 3rd party library is not on NPM, or you want to include some of your projects as modules
So what should be the solution then? The problem is about peer dependencies. The solution is to downgrade angular common or the solution is to use legacy dependencies logic for installing packages using --legacy-peer-deps. So --legacy-peer-deps does not try to install the peerDependencies automatically. Is this going to work for you? Probably, yes. But you should add specific instructions how to do that, or to make the use of --legacy-peer-deps automatic for future installation of the project packages with this code from one of the previous answers:
npm config set legacy-peer-deps true
In my case I installed the package and I tried to run ng serve, but because --legacy-peer-deps was used, there were dependency packages which were not installed. I had to install those manually (because I did not set the configuration from the code above). At the end installing about five packages manually, all with --legacy-peer-deps, I ended to a package that could not be installed and I did not try to continue, because my project was throwing warnings like crazy and there were a lot of packages for audit too. So my decision was not to use this package and to find an alternative.
Other solutions that I read about along the way:
downgrade Node.js to v14. This will downgrade npm. It might not be v14, but this was the version that was most widely downgraded to.
Some people use Yarn to force package installation - personally I don't understand how this works, because I haven't used Yarn.
downgrading Angular and the global Angular CLI version to version that will satisfy the requirement. In my case it is angular/common, and in the question it's angular/core, but both require downgrading the whole angular right (I am not sure about this here).
the package you install might have a higher version that doesn't require downgrading Angular. You might try to use the https://updatepackagejson.com/ to upgrade your packages to the latest, but this is in case your project is quite new.

In addition to using the --legacy-peer-deps command line option, this can also be set more permanently as a config option:
npm config set legacy-peer-deps true

Finally, I found the answer. Try this command -
npm install --save --legacy-peer-deps
Described here legacy-peer-deps

When using npm 7, this comes up a lot because peer dependencies issues are treated as errors in version 7 whereas they were generally only warnings in version 6. Usually using --legacy-peer-deps makes it work with npm 7.
When that doesn't work, an option is to downgrade to npm 6. Downgrading Node.js is not necessary (but not harmful either). The relevant dependency management code is in npm. Downgrading Node.js will often work coincidentally because doing so will often downgrade npm as well.
Another option that is less disruptive than downgrading npm is using npx to use the previous version of npm for just the install command: npx -p npm#6 npm install
And when all else fails, it's often worth a shot to remove the node_modules directory and package-lock.json, and then run npm install again. That regenerates node_modules and package-lock.json.

This happens for some packages after updating to npm 7.
Parameter --legacy-peer-deps can help:
npm i --legacy-peer-deps
Described here legacy-peer-deps
Causes npm to completely ignore peerDependencies when building a
package tree, as in npm versions 3 through 6.
If a package cannot be installed because of overly strict
peerDependencies that collide, it provides a way to move forward
resolving the situation.
...
You can set this option to true by default (not recommended by npm):
npm config set legacy-peer-deps true
Or just wait until these packages get up to date.

Just do two simple steps:
First, execute this in your terminal.
npm config set legacy-peer-deps true
Second, clear the cache:
npm cache clean --force
And finally, execute your command. This will work for sure.

The problem is related to a dependency conflict or broken dependency. You can proceed by accepting the incorrection of dependency by forcing an install.
Solution: Using command with --force.
Your command will be like npm install --force #your-npm-package.
Note: You can use yarn to install a dependency if it's available in to install with the yarn package manager.

NPM can be used to install and manage versions of dependencies in your projects.
I had it the same issue on React versions in relation with the npm version:
npm error found types/react#16.14.20
So it might be package-versions that need to be installed based on your package.json file.
It gives errors in the npm 7 version and cannot install Node.js modules.
If you will downgrade npm version to 6, those problems will become warnings and the problem will be resolved.
Try to prove this command: npm install -g npm#6
Check if version is already installed: npm --version
Remove and install node_modules package:
a) Remove rm -rf node_modules
b) Install: npm i

Try removing the node modules and package-lock.json file and run command npm install
or
Try npm cache clean --force

First I tried
npm install
It gave me error unable to resolve dependency tree and based on the help information from this command,
Fix the upstream dependency conflict, or retry
npm ERR! this command with --force, or --legacy-peer-deps
npm ERR! to accept an incorrect (and potentially broken) dependency resolution.
I tried this command:
npm install --legacy-peer-deps
And it solved my problem.

Try two options to resolve this issue:
Option 1: Delete folder node_modules folder and file package_lock.json after running:
npm cache clean --force after npm i --force
Option 2: run npm install --save --legacy-peer-deps

The fastest solution: npm install --legacy-peer-deps
Explanation:
In npm versions 3 through 6, peerDependencies were not automatically installed, and would raise a warning if an invalid version of the peer dependency was found in the tree. As of npm v7, peerDependencies are installed by default.
npm docs: peerDependencies
Your dependency contains some peerDependencies that conflict with the root project's dependency.
As it described in the npm ERR log.

Disclaimer: This assumes you're on npm v7
Note: If you follow the instructions of sibling commenters, it will create a user-scoped config that won't sync consistently across teammates / machines / buildbots.
Project-based legacy peer dependencies
You will probably want legacy-peer-deps tied to your project so it proliferates across machines / developers, and doesn't contaminate your other projects.
npm config set legacy-peer-deps true --location project
This will create a local file at .npmrc which you can commit to your repository:
legacy-peer-deps=true
Then afterwards, you can just run:
npm install
Then commit the updated lockfile.
Remember, location, location, location:
per-project configuration (/path/to/my/project/.npmrc, see more):
npm config set legacy-peer-deps true --location project
per-user configuration (defaults to $HOME/.npmrc, see more)
npm config set legacy-peer-deps true --location user
or, as the default location is user anyway:
npm config set legacy-peer-deps true
global configuration (defalts to $PREFIX/etc/npmrc, see more)
npm config set legacy-peer-deps true --location global
or, as --global infers --location global
npm config set legacy-peer-deps true --global
For some projects, fixing dependencies may be non-trivial
In my case, a critical dependency we have a legacy version of wants to pull in webpack v3 (!) - but that's a build dependency of that project's.
The best solution on a short term basis is to use legacy-peer-deps as a hold over.
If you are in a pinch, you could also consider forking the dependency and adjusting its peer dependencies accordingly - them point your project to the fork.

You can install the packages using two ways it is showing this error
ERESOLVE unable to resolve dependency tree
Install the package using npm install and having --legacy-peer-deps
npm install --save --legacy-peer-deps
This is a combination of two commands
a. Set legacy-peer-deps true in npm config
npm config set legacy-peer-deps true
b. Now install packages using npm install
npm install

The problem seems to be that gf-kautomata-pipeline-ui is using Angular 9, while #angular/http requires Angular 7. (#angular/http was deprecated and eventually removed, and all its functionality was moved into #angular/common instead.)
See: https://www.npmjs.com/package/#angular/http
If you're running Angular 9, then
delete #angular/http from your package.json (You don't need it in Angular 9)
Make sure you have #angular/common in your package.json.
Run npm i.
If you're running Angular 7, then open up your package.json and check to make sure all of your Angular packages are no higher than ^7.0.0. You may also need remove gf-kautomata-pipeline-ui, or contact the author of gf-kautomata-pipeline-ui and find out if the library is compatible with Angular 7.

This works for me:
npm install --save --legacy-peer-deps

In my case, I started getting the error (below) after upgrading npm from version 6 to 7.
npm ERR! code ERESOLVE npm ERR! ERESOLVE unable to resolve dependency
tree
...
npm ERR! Fix the upstream dependency conflict, or retry this command with --force, or --legacy-peer-deps to accept an incorrect (and potentially broken) dependency resolution.
In my case compiling with either --legacy-peer-deps or --force flags resulted in a useless bundle.
So I tried deleting the node_modules, package-lock.json, and bundle using yarn install. This generated a yarn.lock file and created package-lock.json that worked fine in subsequent npm runs.
P.S.: I am using the temporary workaround until npm 7 works fine with my project: after that, I will delete yarn.lock, package-lock.json and folder node_modules, and recompile with npm
rm -rf node_modules
rm package-lock.json
yarn install
# Generates a yarn.lock file and a new package-lock.json
# Continue with npm
npm start

I just update my Node.js and it works for me:
node -v
Output:
V xxxx
And:
sudo npm install -g n
(Use this command to install the stable node release.)
sudo n stable

If you have node_modules folder and package-lock.json file in your root directory then remove those:
rm -r node_modules
rm package-lock.json
Then run commands:
npm install --save --legacy-peer-deps
npm audit fix --force
Create .env file in the root directory and paste below code:
SKIP_PREFLIGHT_CHECK=true
Now, start your project:
npm start

I have faced this issue many times. At last I found a solution:
npm install react-native-paper --legacy-peer-deps

Use
npm install --legacy-peer-deps
This worked for me.

For this case, I was having the issue
ERESOLVE unable to resolve dependency tree
in an Angular 13 project that used some packages from a private npm feed in Azure DevOps.
To access this repository, I created an .npmrc file. Because of this, the npm install command would search all packages in my private repository and not in npm feed any more. The unable to resolve the dependency tree error happened because the npm install command could not find many of the packages that were hosted in the npm feed and not my private feed.
I found this amazing answer on how to scope packages.
Based on this, I made some changes:
In my library Package.json, update the name to have a scope name #mylib
"name": "#myLib/command-queue",
Build and publish this package to my private feed
In my client app (the one that uses this package), update the .npmrc file to use my private feed for packages in this scope only
#myLib:registry=https://pkgs.dev.azure.com/...
always-auth=true
Now, whenever I run the command npm install, if the package has the scope #myLib, it will look for it in my private feed, and use the npm feed for all other cases (i.e., #angular/...)
This is an example of my client app Package.json file:
"#angular/platform-browser-dynamic": "~13.3.0",
"#angular/router": "~13.3.0", <-- this comes from npm
"#myLib/jcg-command-queue": "^2.2.0", <-- This comes from my private feed
Also, with this change, there isn't any need to add --legacy-peer-deps to the npm install command any more.

We had the same issue resulting in the error bellow:
npm ERR! code ERESOLVE npm
ERR! ERESOLVE could not resolve npm
ERR!
npm ERR! While resolving: #angular/material-moment-adapter#12.1.4 npm
ERR! Found: #angular/material#12.0.6 npm ERR!
node_modules/#angular/material npm ERR! #angular/material#"~12.0.4"
from the root project
...
We use npm ci for clean install in Azure-Pipelines.
The issue was very often, that package.json and package-lock.json were not in sync anymore.
Solution to it was to execute npm install local and push the new package-lock.json.
As and additional hint we added a new task in the pipeline for additional informations if the the job fails.
- task: Npm#1
displayName: npm install
inputs:
command: custom
customCommand: ci
customRegistry: useNpmrc
# ##vso[task.logissue type=error] writes the text to the summary page (error-log).
- bash: echo "##vso[task.logissue type=error] If 'npm install' fails with 'ERESOLVE could not resolve', 'package.json' and 'package-lock.json' (needed for 'npm ci') may be out of sync. Run 'npm install' locally and push the new package-lock.json."
condition: failed() # Only execute on fail
displayName: npm install failed hint

Resetting package-lock.json works good for me all the time:
git checkout -- package-lock.json
Details:
Been experiencing this a lot when updating all packages of the legacy project - I highly don't recommend using npm audit fix nor npm i --force. Deleting the package-lock.json didn't work for me all the time as well. Rollback to the working version of package.json + package-lock.json and add packages turned out to be the safest and fastest variant for me.

Just in case, I did have similar behavior, when I tried either npm upgrade my current Angular 11.x based boilerplate from previous ng new or create new ng new abc based on Angular 12.x. I simply forgot to upgrade Angular CLI. So this npm install -g #angular/cli#latest solved my errors during ng new abc.

In my case I was having trouble with a #babel/core dependency, but I didn't want to use --force, because I was not sure about the consequences, so I went to https://www.npmjs.com/, looked for the package and replaced my old version with the newest one. That did the work.

This is an issue of Node.js version. Some latest versions of Node.js could show errors like these.
https://github.com/nvm-sh/nvm
I use NVM to manage Node.js versions on the system and use Node.js 12 to get past this error.
Command to change version:
nvm use 12

Downgrade Node.js to v14 works for me.
Use these commands:
source ~/.bash_profile
nvm use v14.16.1
npm install

Related

ENOLOCK npm ERR! Error while running npm audit fix

I am trying to install GLOBALLY a package with npm from my home directory. After the install has completed, it indicates vulnerabilities. Upon trying to run npm audit fix, I obtain the following error.
npm ERR! code ENOLOCK npm ERR! audit This command requires an existing
lockfile. npm ERR! audit Try creating one first with: npm i
--package-lock-only npm ERR! audit Original error: loadVirtual requires existing shrinkwrap file
I understand that the error asks me to run npm i --package-lock-only, but in which directory should I be creating this file? Running the command without specifying a path does not work. I have also tried to create the file in the directory where the package was installed, but that has also not solved the issue. Also, why isn't this file present to start with?
npm audit fix is intended to fix vulnerabilities with the dependencies of your own project. Projects do have a package-lock.json file.
It is not intended for globally installed packages. If there are vulnerabilities with packages from others, they need to be fixed by the package maintainer in a new release. You can then update to this new release.
BTW, you should not use globally installed packages. Use npx instead.

Fix the upstream dependency conflict installing NPM packages

I am trying to npm install vue-mapbox mapbox-gl, and I'm getting a dependency tree error.
I'm running Nuxt.js SSR with Vuetify and haven't installed anything related to Mapbox prior to running this install and am getting this error.
38 error code ERESOLVE
39 error ERESOLVE unable to resolve dependency tree
40 error
41 error While resolving: [1mexample[22m#[1m1.0.0[22m
41 error Found: [1mmapbox-gl[22m#[1m1.13.0[22m[2m[22m
41 error [2mnode_modules/mapbox-gl[22m
41 error [1mmapbox-gl[22m#"[1m^1.13.0[22m" from the root project
41 error
41 error Could not resolve dependency:
41 error [35mpeer[39m [1mmapbox-gl[22m#"[1m^0.53.0[22m" from [1mvue-mapbox[22m#[1m0.4.1[22m[2m[22m
41 error [2mnode_modules/vue-mapbox[22m
41 error [1mvue-mapbox[22m#"[1m*[22m" from the root project
41 error
41 error Fix the upstream dependency conflict, or retry
41 error this command with --force, or --legacy-peer-deps
41 error to accept an incorrect (and potentially broken) dependency resolution.
41 error
41 error See /Users/user/.npm/eresolve-report.txt for a full report.
42 verbose exit 1
What's the right way to go about fixing this upstream dependency conflict?
It looks like it's a problem with peer dependencies in the latest version of npm (v7) which is still a beta version.
Try with npm install --legacy-peer-deps. For detailed information check the blog post npm v7 Series - Beta Release! And: SemVer-Major Changes in npm v7.
Use --legacy-peer-deps after npm install. For example, if you want to install Radium, use:
npm install --legacy-peer-deps --save radium
There are two ways:
use npm install --legacy-peer-deps to install, and if this doesn't work use
the force method. Add --force next to npm install: npm install --force
You can follow these commands
First type:
npm config set legacy-peer-deps true
Then type:
npx create-react-app my-app
Your dependency mexample requires mmapbox-gl v1.13.0 and mvue-mapbox requires mmapbox-gl v0.53.0.
NPM doesn't know which version to install, so it gives a warning. You can bypass the errors using -- force or --legacy-peer-deps, but you are ignoring an error, and making unexpected results.
Production Options:
Probably one of your packages is outdated. Upgrading packages and fixing upgrade errors might fix the dependency conflict.
Overriding a dependency manually to avoid the warning and error. You are setting the version to a specific one that you know that works. Usually the newer version.
Example solution with override. Your package.json file will look like this:
{
"name": "my-app",
"version": "0.1.0",
"private": true,
"dependencies": {
"mexample": "^1.2.0",
"vue-mapbox": "*"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject"
},
"overrides": {
"mmapbox-gl": "1.13.0"
}
}
The last option is bypassing using either:
--legacy-peer-deps completely ignores all peerDependencies using the newest version without pinning on file package-lock.json
--force forces the use of the newest, pinning all the versions on package-lock.json
Extra: You shouldn't use "*" as a version, because it might update major and break dependencies.
Until npm version 7.19.1, it still had the same issue. After upgrading to version 7.20.3, use command npm install -g npm#latest and npm audit fix. All packages will be fixed without error.
I tried multiple ways, but nothing was working for me. At last I tried this and it worked:
npm config set legacy-peer-deps true
Run this in the project folder and then try to install any package. It might work for you as well.
To solve it, fix the upstream dependency conflict installing NPM packages error
Method 1. Just use --legacy-peer-deps after npm install.
For example, if you want to install Axios, use
npm install --legacy-peer-deps --save axios.
Method 2. Updating npm and 'audit fix'
npm I -g npm#latest
npm audit fix --force
Method 3. Using --force to install packages
npm install axios --force
I was stuck on this issue for long which also makes error from other commands which calls for some install commands that was breaking.
The only solution that works (maybe suppresses the error) is
npm config set legacy-peer-deps true
This will set the configuration of legacy-peer-deps to true
To resolve npm dependencies and conflicts with npm packages, use npm-check-updates.
Almost all answers here suggest using force or legacy-peer-deps. Though this will technically work, please note that this is not recommended by NPM if you can avoid it anymore (source). Some folks may not have a choice, but I was able to resolve my dependency conflicts by deleting node-modules and package-lock.json then manually updating packages to their latest version one at a time until it stopped complaining (packages mentioned in the error messages after running npm i. Not a great or clean solution, but at least my packages are up-to-date and I'm not ignoring errors or using legacy solutions.
A lot of upvotes for using --legacy-peer-deps, but if --force works, I would recommend using that since it still pins many dependency versions while --legacy-peer-deps ignores peer dependencies entirely. See the example below:
npm: When to use --force and --legacy-peer-deps
I started getting this error on Azure DevOps a few days ago. I initially thought it was a glitch on the Azure side, but since it continued, we started looking into it a bit more.
It turns out the agent we are using, windows-2022, was updated a few days ago:
Updating readme file for win22 version 20220607.3 (#5713)
Node and NPM now match the latest Node.js LTS version: 16.15.1 (includes npm 8.11.0)
Downloads
You can view all agents-included software on Microsoft-hosted agents, Software.
After reading on Microsoft Visual Studio Developer Community, they recommend downgrading Node.js using Node.js Tool Installer task like this:
- task: NodeTool#0
inputs:
versionSpec: '16.14.2'
Node.js Tool Installer task
npm install fails in Azure DevOps Hosted Agent
However, we decided that we do not want to downgrade Node.js, so the first step was matching Node.js locally with LTS version 16.15.1 and npm 8.11.0.
When running npm ci, we then got the same error locally.
We tried npm ci --force and we then got this error:
npm ci can only install packages when your package.json and
package-lock.json or npm-shrinkwrap.json are in sync. Please update
your lock file with npm install before continuing.
npm install gave the same error even after node_modules was manually removed, but npm install --force worked, and it generated a new package-lock.json file.
npm ci still failed with the same error, but running npm ci --force worked. We decided to update Azure DevOps .yml to include --force and checked in the new package-lock.json file. After doing this, everything worked like before and we could now update our packages one by one.
delete the package-lock.json file
modify the package.json file, updating the version as indicated by the peer dependency
Add a tilde or caret for allowing install latest version and resolving dependency issues, for example :
~1.0.2 means to install version 1.0.2 or the latest patch version such as 1.0.4.
^1.0.2 means to install version 1.0.2 or the latest minor or patch version such as 1.1.0.
run npm install or npm udpate
I resolved this by adding
steps:
- task: NodeTool#0
inputs:
versionSpec: '12.x'
Nothing here worked for me.
After struggling with this issue for so long, I found a solution that worked.
Apparently I had some packages installed globally.
Listed them with:
npm list -g --depth=0
Then removed the unwanted packages with:
npm uninstall -g <package-name>
Finally I got the problem fixed

npx create-react-app gives error when running npm start

I'm having an issue with the create-react-app command. I've followed the instructions twice, tried other solutions such as adding
"resolutions": {
"ajv": "6.8.1"
}
to the package.json file then uninstalling and reinstalling ajv#6.8.1. I've tried using yarn but ended up just starting it all over to use npm, just to get the same error. Most answers I am finding are a year or more old. any help is Appreciated!
Here is the error message..
npm start
scilenceapp#0.1.0 start C:\Users\chris\OneDrive\Documents\coding stuff\SciLence\ScilenceApp\scilenceapp
react-scripts start
There might be a problem with the project dependency tree.
It is likely not a bug in Create React App, but something you need to fix locally.
The react-scripts package provided by Create React App requires a dependency:
"webpack": "4.42.0"
Don't try to install it manually: your package manager does it automatically.
However, a different version of webpack was detected higher up in the tree:
C:\Users\chris\node_modules\webpack (version: 4.41.2)
Manually installing incompatible versions is known to cause hard-to-debug issues.
If you would prefer to ignore this check, add SKIP_PREFLIGHT_CHECK=true to an .env file in your project.
That will permanently disable this message but you might encounter other issues.
To fix the dependency tree, try following the steps below in the exact order:
Delete package-lock.json (not package.json!) and/or yarn.lock in your project folder.
Delete node_modules in your project folder.
Remove "webpack" from dependencies and/or devDependencies in the package.json file in your project folder.
Run npm install or yarn, depending on the package manager you use.
In most cases, this should be enough to fix the problem.
If this has not helped, there are a few other things you can try:
If you used npm, install yarn (http://yarnpkg.com/) and repeat the above steps with it instead.
This may help because npm has known issues with package hoisting which may get resolved in future versions.
Check if C:\Users\chris\node_modules\webpack is outside your project directory.
For example, you might have accidentally installed something in your home folder.
Try running npm ls webpack in your project folder.
This will tell you which other package (apart from the expected react-scripts) installed webpack.
If nothing else helps, add SKIP_PREFLIGHT_CHECK=true to an .env file in your project.
That would permanently disable this preflight check in case you want to proceed anyway.
P.S. We know this message is long but please read the steps above :-) We hope you find them helpful!
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! scilenceapp#0.1.0 start: react-scripts start
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the scilenceapp#0.1.0 start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\chris\AppData\Roaming\npm-cache_logs\2020-07-27T21_42_25_489Z-debug.log
PS C:\Users\chris\OneDrive\Documents\coding stuff\SciLence\ScilenceApp\scilenceapp>
“C:\Users\chris\node_modules\webpack (version: 4.41.2)”
You may have to remove that file from your c drive. And run npm i again. I had the same issue with jest.
try also npm cache clean --force

nest Command not found

I followed the documentation to create my first NestJS project.
Installing the Nest CLI with the command npm i -g #nestjs/cli was successful.
The output was:
+ #nestjs/cli#6.3.0
updated 1 package in 11.326s
However, when I try to scaffold a project with the Nest CLI:
nest new project-name
I get the following error:
zsh: command not found: nest
Some details about my environment:
OSX
iTerm
npm version 6.5.0
Use npx #nestjs/cli instead of nest
e.g. npx #nestjs/cli g controller pages
I was also getting the same console error when npm installing!
Erro was
#nestjs/cli
npm WARN deprecated resolve-url#0.2.1: https://github.com/lydell/resolve-url#deprecated
npm WARN deprecated urix#0.1.0: Please see https://github.com/lydell/urix#deprecated
npm WARN deprecated chokidar#2.1.8: Chokidar 2 will break on node v14+. Upgrade to chokidar 3 with 15x less dependencies.
npm WARN deprecated fsevents#1.2.13: fsevents 1 will break on node v14+ and could be using insecure binaries. Upgrade to fsevents 2.
npm WARN checkPermissions Missing write access to /usr/local/lib/node_modules/#nestjs/cli
npm WARN checkPermissions Missing write access to /usr/local/lib/node_modules/#nestjs
npm WARN notsup Unsupported engine for watchpack-chokidar2#2.0.0: wanted: {"node":"<8.10.0"} (current: {"node":"12.14.1","npm":"6.13.4"})
npm WARN notsup Not compatible with your version of node/npm: watchpack-chokidar2#2.0.0
How I wasn able to install =>
Solution
sudo npm install -g #nestjs/cli
Following command works in my windows 10
node -v
v14.16.0
npm -v
6.14.11
npx #nestjs/cli new project-name
I was having the same issue, what I did was:
Installed the latest node with npm install npm#latest -g
and then added the following to my .bash_profile
alias nest="/usr/local/Cellar/node/11.9.0/bin/nest"
Tested with nest --version and it worked.
For some reason the path is not being called correctly, hope it helps.
Working through a NestJS/Mongo DB tutorial i stumbled into this very same problem. After trying all of the solutions that were listed above, even turning my default profile back to bash instead of using zsh, i found that simply adding the /usr/local/bin and ~/.npm-global/bin to my path variable resolved the issue. Hopefully this helps someone else who may stumble on this in the future as well.
export $PATH="/usr/local/bin"
export $PATH="~/.npm-global/bin"
Were the two commands i ran from iTerm2 in order to add them to my PATH environment variable. Once this was done a simple
env
showed the entries in my $PATH environment variable and the nest -v command worked without any issues.
I had same error when I use GitBash.
I resoved it:
If you use windows:
Your use CMD: npm i -g #nestjs/cli
Then you can use gitbash:
Check version nestjs: nest --version
Create app nestjs: nest new name_project
I have faced same problem and solved ,following this
write the command NPM root -g
check where NPM is installed
add it to your path environment variable
You have to add the following line to your ~/.zshrc file:
source $HOME/.bashrc
This is needed so that the npm binaries are available on startup.
After all the answers that I tried, I used my method
After installing npm i -g #nestjs/cli in my mac terminal.
open bash file in macos by typing open ~/.bash_profile in mac terminal. Like you can type it anywhere.
Your bash will look like this and use this line
alias nest="~/.npm-global/lib/node_modules/#nestjs/cli/bin/nest.js"
Restart your mac for changes to be reflected in your terminal.
There you go nestjs cli is now working globally 2nd screenshot.
I have just succeeded with
npx #nets/cli new project
when asked what manager to choose from npm / yarn / pnpm
made choice for pnpm
cd project
npm run start
Take care!
Must use sudo in comandline for linux, otherwise the command nest cannot be add to /usr/local/bin folder:
sudo npm install -g #nestjs/cli
You can try to use sudo
sudo yarn global add #nestjs/cli
I got the same issue.
I just uninstalled and reinstalled nextjs.
Finally, I can use next -v

How do I fix missing #angular/Core modules?

I can not run the Angular 2 project.
What I tried:
- running the project by using npm install and npm start | does not work
- I cloned quickstart from the github and replaced with my src folder and I still get the "can not find module in #angular/core"
Here is the full console output: https://www.dropbox.com/s/5plmqrjd6ge0lta/error.txt?dl=0
Many people will come here. I have had the same problem. Do not panic. You are probaly following the tutorial of tutorialspoint.
Just install the core again using NPM
npm install #angular/core
There was/is a bug in certain versions of npm that causes installed modules to disappear when using npm install someModule ... or npm install someModule --save-dev
This was apparently an issue if the module being installed was from a GitHub repo and lacked a specific commit hash to reference for the installation. Although the issue was marked "closed" and the repo archived several months ago at v5.6.0, I ran into the problem today w/the latest npm 6.4.0
In my case, doing npm install rxjs completely removed the #angular/core module, along with my #ionic-native plugins, and anything else I'd installed individually (and then it failed to actually/properly install rxjs anyway!!)
Tip: copy your existing npm modules folder as a backup before starting updates or removing it entirely & trying to npm install.
You can manually install to your project via npm install #angular/core, but depending on the npm version (or the angle of the moon at that precise moment, who knows) be aware that you might wind up with other missing dependencies.
Also try npm install #angular/core && npm install ... Apparently the additional npm install helps replace the randomly deleted/missing modules in some cases.

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