Node.js - Configuring $NODE_PATH with NVM - javascript

On my way setting up Node.js with NVM, I stumbled upon an error when using Yeoman. I got
the error
Cannot find module 'yeoman-generator'
After some research I found this post on StackOverflow, which is also about my problem. Now I tried to do so, but the problem I have is, that I want to use different versions of Node.js over the system with the use of NVM. Now is it possible to change the $NODE_PATH dynamically, if the Node.js version changes with the help of NVM? Because my $NODE_PATH is empty at the moment (this is causing the problem).
$ which node
/Users/dschmidt/.nvm/v0.10.35/bin/node
$ which npm
/Users/dschmidt/.nvm/v0.10.35/bin/npm
$ echo $NODE_PATH
[empty]
Would be glad about every answer I get about this. I searched the web for this, but could not find one post about this specifically.

Adding following to .bashrc or .zshrc helps
export NODE_PATH=$NODE_PATH:`npm root -g`
I am not expert whether that is good.
source as pointed out by Pensierinmusica

NVM will set the path for node and npm once you run
nvm use <node_version>
However, that is just for the current shell and any new shells will not have a version of node an npm selected until your run the previous command unless you set a default version
nvm alias default <node_version>
voila! You have a working version of npm and node in any new shell you open.
To change the default simply run it again with the new version of node you want to use. e.g.
nvm alias default v5.4.0

I figured a way to make this work.
In your ~/.bash_rc file or ~/.zsh_rc add this line:
export NODE_PATH=`which node`
Open new shell or run this source ~/.bash_rc to pick up the changes

This (taken from GN. and Nick) works fine for me, but I needed to add it to ~/.bash_profile because I use Bash as a shell on my Mac
export NODE_PATH=`which node`

Related

JavaScript Program Path Not Specified Error

I've been creating a JavaScript game for a project recently and have done it completely on the CodePen website. I now am trying to transfer it to WebStorm to turn it into a basic website. However when I try to run my code I get the following error:
I don't know how to fix it, I've looked everywhere and haven't been able to get some help. Any information would be appreciated.
Simple one, basically the error says, I don't know how to interpret this bit of code that you just gave me. You're missing local install of Node.js and NPM. Get the latest versions of these 2, and then go to File -> Settings -> Language&Frameworks -> Node.js and NPM and in the Node interpreter text box, point it to the path of where node.js was installed.
You're running this JavaScript file with Node.js that is probably not installed on your machine. It seems that you want to run and debug your app in the browser instead. For that you need to create a JavaScript run/debug configuration instead as described here: https://www.jetbrains.com/help/webstorm/debugging-javascript-in-chrome.html
On a linux machnie,
Install nodejs and npm
sudo apt-get install nodejs
sudo apt-get install npm
Get the nodejs installation folder
whereis nodejs
Should print something like:
/usr/bin/nodejs /usr/lib/nodejs /usr/include/nodejs /usr/share/nodejs /usr/share/man/man1/nodejs.1.gz
Go to:
Webstorm-> File -> Languages & Frameworks -> Node interpreter
Copy paste the installation folder to the text box.
Mac OS here. Solved the issue with:
$ brew install nodejs

Cannot debug Nodejs with node-inspector - Websocket_closed

I know that these are some similar / duplicate responses when searching for a solution to this. But the Node world seems to update so regularly that any answers I've found are refering to a much older version.
I'm currently running:
Node v6.9.1
Node Inspector v0.12.8
The error I get is as follows:
Detached from the target
Remote debuggng has been terminated with reason: websocket_closed
please re-attach to the new target
I had an identical issue. After digging around on some forums, I found that downgrading to Node v6.3.1. Here
So the next question was "How do I manage versions of node". Plenty of results show up with nvm. Stack Overflow has a post on it here.
None of the version managers for windows are kept up with. I found another one that is kept up to date (as of 1/1/17). I posted that answer here
Back to the original problem, with the nvm-windows installed:
nvm install v6.3.1 //I was running 6.9.1 - downgrade
The utility downgrades your npm version
Downloading npm version 3.10.3....complete
Installing npm v3.10.3
Then use it
nvm use 6.3.1
Note - I use a bunch of IDEs / Editors (depending on what I am doing). Editors such as Atom or WebStorm which have a Terminal / Command prompt embeded in it will need to be restarted AFTER you install nvm-windows in order to get access to the environment command "nvm".
Once you have node downgraded, the node-inspector worked find for me:
node-debug server.js
Maybe node with higher version(6.9.1) built in inspect, and node-inspect don't update longer..
solution:use node --inspect yourapp replace node-inspect & node --debug yourapp
It worked for me.
you can see Github issues Detached from the target, websocket_closed, cannot read property ref of undefined (NM[0] is undefined)

npm not installing returns error consistently

I was trying to install this : Search git whodotheyserve. com but this error shows up consistently .No matter what i try. I have tried other version of npm they are installed but the
npm test
error shows up .
npm run-script task
too returns error
This happens consistently .Also i am following each step mentioned in source of this project.Image attached.Please help where am i wrong here. The file extension used here ls .I had no experience with these. Image link
Echo %PATH% image link
The build fails because you are using Windows instead of Linux.
This is clearly stated in the installation instructions you claim to have followed in your duplicate question.
notes
The build tasks rely on Linux shell commands such as pkill and rsync
so are unlikely to run on other OS's without some tweaks.
If you want to run this under windows, you should ask the repo maintainer for guidance.
You have to install python 2.7 and make sure it's in your PATH variable.
Try:
set PATH=%PATH%;C:\python2.7\python.exe
Replace C:\python2.7\python.exe with your actual python installation path
The issue here was that this was made to run on linux only.So ,it won't run on windows on which i was trying to run it.The issue arose as i was trying to install it on wrong OS.I have successfully installed it on linux.It works great.
I want to thank all those who contributed in helping me with this issue.Thanks a lot to all those who helped.

Node Windows NPM not installing

I'm trying to simply install a stupid package in Node. I use the normal ol' command and it proceeds to tell me it can't find a file or directory (see image below). I've already updated and reinstalled npm, and still the same thing. I'm also running Windows 8. Any ideas, please?
Should I give up developing Node on a Windows machine?
Thanks!
Run npm init first and it will create the package.json file that it is looking for.

Uncaught Error: Module did not self-register

I try to use node-vlc with nw.js (v0.12.0-alpha2). When i launch my app without nw.js it works, but when i launch it with nw.js i got an error:
Uncaught Error: Module did not self-register.", source: /home/alexis/Bureau/dev/jukebox/node_modules/vlc/node_modules/ffi/node_modules/bindings/bindings.js (84)
I tried some commands with nw-gyp but it couldn't help me.
I am on Ubuntu 14, 64-bit.
If you've upgraded node then npm rebuild might fix this for you
For me:
rm -r node_modules then
npm install
I had a similar issue with another product and my fix was to change the version of node I was using. I was using 0.12.0 and changed back to 0.10.26.
Personally, I use NVM to handle node version changing. With NVM installed it's as simple as running
nvm use 0.10.26
Or setting the default version to 0.10.26
nvm alias default 0.10.26
Hopefully this helps you out - our issues came from different products but the solution may be the same.
I had similar problem.
/Users/user/NodeAddons/bridge/node_modules/bindings/bindings.js:83
Error: Module did not self-register.
In my case I was doing a C/C++ Add-on, and I had forgotten to export the add-on, in my main.cc was missing the code below:
void Init(v8::Handle<v8::Object> exports) {
NODE_SET_METHOD(exports, "method", method);
}
NODE_MODULE(method, Init);
Hope this helps others!
Thanks :)
I've add the same issue because I installed to modules as sudo...
Removing the node modules folder and reinstalling as normal user fixed it.
For me npm rebuild or npm update didn't work. I had to remove the node_modules folder and run npm install to install them again.
I once had this problem when creating a multi-file c++ addon. In my binding.gyp file I had:
"sources": ["src/*.cc", "src/*.h" ]
And my project contained several *.cc files. However, the NODE_MODULE() macro was called only on one file which imported the rest of the files. But node expects that it is called on the frist *.cc file listed in sources. So I had to change sources to explicitly add that file to the beginning
For me, running npm update worked
I was getting an internal error: Module did not self-register.
Deleted the node_modules folder
ran npm install
It worked just fine.
I had this error with Snappy. Was using Node 11. Checked Snappy's NPM page https://www.npmjs.com/package/snappy where they listed which versions of node they supported.
Deleting node_modules folder rm -rf node_modules and then reinstalling using the correct version of Node resolved it.
One of the versions they supported on Linux at the time of this writing was Node version 12.
nvm deactivate 11
nvm uninstall 11
nvm install 12
nvm use 12
Problem solved
Another cause of this problem: if you're using pm2, then after upgrading node you may need to reinstall pm2. Test whether pm2 is the issue by running your app
without pm2 node server.js
then with pm2: pm2 start server.js.
Proper way to update PM2 after updating Node.js
I had this same issue with 0.12 and io.js 1.3.0, reverting to Node.js 0.10 fixed the issue.
Rebuild your C++ add-ons.
Did you encounter something like this?
Module did not self-register: '…\node_modules\#u4\opencv4nodejs\build\Release\opencv4nodejs.node
It’s likely that you have just updated your Node.js. Once you updated your Node.js, you need to rebuild your C++ add-ons, Node.js packages written in C++.
Why
When you build Node.js’ C++ add-ons, they get compiled into require-able .node files and linked to the currently installed Node.js ABI library, which is not compatible with other versions of it. Your packages were built only compatible with the specific version of Node.js.
How
Firstly, try npm rebuild. If your C++-add-on-based packages have a build script, it’ll do. If it doesn’t, you need to manually build your C++ native add-on packages. Do again what you did when you were installing such packages. Refer to the building instructions in the packages’ documentations to rebuild them. Or try reinstalling (npm install) them.
I had the same problem. My script that was referencing a global reference script had an invalid reference. I took off that invalid reference and the error was gone. My error message had no indication of that particular invalid reference which made it harder to debug. But 'Uncaught Error: Module did not self-register' was the message I was getting.
This also happen in my other project. For some reason, it wouldn't recognize the reference path if one of the characters are uppercase. Even thought, the upper-casing was the correct spelling of the path.
I had this issue while setting up my Cypress project.
I found out the issue was caused because Cypress uses node from its bundle version by default (which was version 8.0 in my case) , whilst the package I wanted to use required the node version to be 10 or higher.
I did have node 12.0 installed on my machine but since cypress was not using that I had to add the line shown below in the settings file (cypress.json) to set the value for 'nodeVersion' to 'system', to tell cypress explicitly to use the node version installed on my machine.
Add this line to your settings file:
**"nodeVersion": "system"**

Categories