Webpack - dependency not found - javascript

I just started using Laravel Mix which is using webpack. I'm having some issues resolving dependencies.
I tried to install l20n with npm install l20n, added it to my project by adding require('l20n'); and then I ran npm run dev only to be told the following:
ERROR Failed to compile with 1 errors
This dependency was not found:
* fs in ./~/l20n/dist/bundle/node/l20n.js
Alright, so I figured I had to install fs too, issuing npm install fs and then I ran npm run dev again, but I get the exact same message. What am I doing wrong?

Ok, I checked out the source and I think I know what the issue is. The lib you are using is supposed to run in a node environment.
So, in your webpack configuration add this:
target: 'node'
For more info on targets see this

Related

I get an error when using the command "npm run start" for my react project

I am new to coding and would appreciate some help with this I get the following error when I try to run my react app: npm run start
Failed to compile.
Loading PostCSS "postcss-normalize" plugin failed: Cannot find module 'postcss-normalize'
Require stack:
/Users/abc/node_modules/postcss-loader/dist/utils.js
/Users/abc/node_modules/postcss-loader/dist/index.js
/Users/abc/node_modules/postcss-loader/dist/cjs.js
/Users/abc/node_modules/loader-runner/lib/loadLoader.js
/Users/abc/node_modules/loader-runner/lib/LoaderRunner.js
/Users/abc/node_modules/webpack/lib/NormalModule.js
/Users/abc/node_modules/webpack-manifest-plugin/dist/index.js
/Users/abc/node_modules/react-scripts/config/webpack.config.js
/Users/abc/node_modules/react-scripts/scripts/start.js
(#/Users/abc/node_modules/bootstrap/dist/css/bootstrap.css)
ERROR in ./node_modules/bootstrap/dist/css/bootstrap.css (./node_modules/css-loader/dist/cjs.js??ruleSet[1].rules[1].oneOf[5].use[1]!./node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].oneOf[5].use[2]!./node_modules/source-map-loader/dist/cjs.js!./node_modules/bootstrap/dist/css/bootstrap.css)
./node_modules/bootstrap/dist/css/bootstrap.css (./node_modules/css-loader/dist/cjs.js??ruleSet[1].rules[1].oneOf[5].use[1]!./node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[1].oneOf[5].use[2]!./node_modules/source-map-loader/dist/cjs.js!./node_modules/bootstrap/dist/css/bootstrap.css)
Module Error (from ./node_modules/postcss-loader/dist/cjs.js):
Loading PostCSS "postcss-normalize" plugin failed: Cannot find module 'postcss-normalize'
Require stack:
/Users/abc/node_modules/postcss-loader/dist/utils.js
/Users/abc/node_modules/postcss-loader/dist/index.js
/Users/abc/node_modules/postcss-loader/dist/cjs.js
/Users/abc/node_modules/loader-runner/lib/loadLoader.js
/Users/abc/node_modules/loader-runner/lib/LoaderRunner.js
/Users/abc/node_modules/webpack/lib/NormalModule.js
/Users/abc/node_modules/webpack-manifest-plugin/dist/index.js
/Users/abc/node_modules/react-scripts/config/webpack.config.js
/Users/abc/node_modules/react-scripts/scripts/start.js
(#/Users/abc/node_modules/bootstrap/dist/css/bootstrap.css)
Thank you so much
I've tried updating to the latest version of node and npm, however, that did not help. I've also verified my code several times as I'm mostly practicing along with a course. Thank you.
As it appears this error will temporarily get fixed by installing the latest version of Node.js.
So to fix this follow these steps:
Download and install the latest Node.js version (recommended for most users, which is 16.15.0 at this moment).
Delete your node_modules directory from your project. Then you can optionally clear npm cache with npm cache clean and verify it with npm cache verify.
Delete package-lock.json/yarn.lock file.
Reinstall all of the dependencies and create a new dependency tree using one of the following commands: npm i/npm install/yarn/yarn install.
Note1: If in any case, you use node-sass in React projects yet, it is recommended to use sass instead.
Note2: In some cases skipping step 1 will also work as expected, but I recommend upgrading the Node.js version if you do not have other dependencies to prevent that.
Note3: As #IvaniltonBezerra mentions in the comments, some app builds may throw errors, since upgrading Node.js to its latest version will upgrade the npm as well it may not compatible with your current dependency tree in production, so to prevent such a problem you have to use --legacy-peer-deps to restore the old behaviour of the old dependencies.
Update
This is now seem to be permanently solved in PostCSS Preset Env and following the above steps with skipping step 1 will also solve the problem.

This dependency was not found

When i try to npm run serve it stops at 98% and :
ERROR
Failed to compile with 1 error
This dependency was not found:
* #/components/HelloWorld.vue in ./node_modules/cache-loader/dist/cjs.js??ref--12-0!./node_modules/babel-loader/lib!./node_modules/cache-loader/dist/cjs.js??ref--0-0!./node_modules/vue-loader-v16/dist??ref--0-1!./src/views/Home.vue?vue&type=script&lang=js
To install it, you can run: npm install --save #/components/HelloWorld.vue
I looked up for some sources but never helped. Even installing HelloWorld.vue turns an error.
It looks like one of your files is trying to load a local component called HelloWorld.vue and it may not exist in your project structure. You shouldn't try to "install" it, but rather head to the Home.vue file where this error is being triggered from (see Home.vue at th end of the error message?). Then ask yourself, do you actually want to load HelloWorld.vue?
I imagine you're following some sort of "getting started with Vue" guide and you've been instructed to include that file. You'll have to either create that file in the {YOUR_PROJECT}/src/components/ folder, or remove the code that's trying to load it.
Alternatively, this could be a configuration error in which you're trying to use the # alias but it hasn't been setup in webpack properly. Please include more info if this doesn't solve your problem.
Maybe Vue Js cli is not installed on server
// to install vue on ubuntu
npm install -g #vue/cli
// check if it was installed successfully
vue --version
#vue/cli 4.1.2

Problem with the command "npm install fs"

I am not used to work with Linux, so maybe this is a silly question. In the lab that I am working on, I am asked to run the command "npm install fs" to read/write files.
But here is the error that i have and I don't know how to solve it, i couldn't find similar problems too.
PS: I am working on Ubuntu 17.10.
fs is a module that doesn't have to be installed. It comes part of node.js core so you only need to require it in your code.
Instead of running npm install fs --save, just add the following line in the file you're wanting to use it in:
const fs = require('fs');
Here are the docs: https://nodejs.dev/the-nodejs-fs-module
However, to address your question, the error message your receiving is likely due to the fact that:
You don't have a package.json in your project
You are not in the correct directory when running npm install ... and therefore it cannot find your package.json.
I believe your mistake is that you skipped the part where you initialize your npm repository (which generates your package.json).
To initialize an npm repo, do the following:
Navigate to your project root directory
Run npm init and follow the instructions if when prompted.

Module Parse Failed while trying to implement scss into wepack & babel configuration

i am trying to add scss to my webpack / babel configuration but when running npm run build it throws me the following error:
Since this is my first time using webpack as well as babel, I honestly have no clue what I have to change.
I created a repo with all my files. And did a screenshot of the error message. If you need any other information just tell me.
It would be awesome if we could fix my (probably garbage code) up to the point where it is running.
Thank you so much!!!
You need to try sass-loader
npm install sass-loader node-sass webpack --save-dev
For more info please look at this https://webpack.js.org/loaders/sass-loader/

Cannot find module 'crawler'

After installing node-crawler in Node.js (not in the default directory) via the npm command, I tried to run the code in the "Usage" section but an error occurs when executing var Crawler = require("crawler"); and the VisualStudio Code debug console says Cannot find module 'crawler'.
Does it happen because I installed crawler in a custom location? How can I fix this?
npm install will install a package locally. (--save to have package appear in your dependencies.)
To have access to it from everywhere, you need to install it globally, using npm install -g
Maybe I found the solution. I replaced "crawler" in var Crawler = require("crawler"); with the path that points to the crawler.js file in the lib folder in node-modules, and now the code works. Maybe it happened because I installed crawler in a custom location and so VisualStudio couldn't find "crawler".

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