[node.js] npm install hangs

This is my package.json:

{
"name": "my-example-app",
"version": "0.1.0",
"dependencies": {

  "request": "*",
  "nano": "3.3.x",
  "async": "~0.2"
  }
}

Now, when I open the cmd and run npm install, the install hangs. What am I doing wrong?

This method is working for me when npm blocks in installation Package for IONIC installation and ReactNative and another package npm.

You can change temporary:

npm config set prefix C:\Users\[username]\AppData\Roaming\npm\node_modules2

• Change the path in environment variables. Set:

  C:\Users[username]\AppData\Roaming\npm\node_modules2

• Run the command to install your package.

• Open file explorer, copy the link:

  C:\Users[username]\AppData\Roaming\npm\node_modules

  ok file yourpackage.CMD created another folder Created "node_modules2" in node_modules and contain your package folder.

• Copy your package file CMD to parent folder "npm".

• Copy your package folder to parent folder "node_modules".

• Now run:

  npm config set prefix C:\Users\[username]\AppData\Roaming\npm

• Change the path in environment variables. Set:

  C:\Users[username]\AppData\Roaming\npm

Now the package is working correctly with the command line.

Incase its useful to others, the following is what worked for me:

On my machine, although npm proxy was set correctly, npm install waits forever doing something like sill extract. Re-trying npm install waits forever on the same package again and again.

After waiting for a long timeout, npm install printed an error message implying that git was trying to fetch something.

The problem vanished after configuring git proxy using the below command:

git config --global http.proxy https://proxy-server:port

Note the https in the value of http.proxy without which the configuration did not take effect. Proxy server settings (http / https / port) might vary for users; hence its worth spending a bit of time experimenting with npm and git proxy server settings.

For anyone on MacOS (I'm on Mojave 10.14), the following helped me out: https://github.com/reactioncommerce/reaction/issues/1938#issuecomment-284207213

You'd run these commands

echo kern.maxfiles=65536 | sudo tee -a /etc/sysctl.conf
echo kern.maxfilesperproc=65536 | sudo tee -a /etc/sysctl.conf
sudo sysctl -w kern.maxfiles=65536
sudo sysctl -w kern.maxfilesperproc=65536
ulimit -n 65536

Then try npm install once more.

Updating npm helped me on Mac OS. Use the command:

sudo npm install -g npm@latest

I'm not sure if your problem is being caused by the same reason that mine was, but I too was experiencing a hanging "npm install" and was able to fix it.

In my case, I wanted to install typescript locally in the project:

npm i typescript --save-dev

For some reason this was conflicting with a global install of typescript that I had, and the shell was just hanging forever instead of finishing or erroring...

I fixing it by first removing the globally installed typescript with the -g global flag:

npm uninstall typescript -g

After doing this the first command worked!

I had the same issue on macOS, after some time struggling and searching around, this answer actually solved the issue for me:

npm config rm proxy
npm config rm https-proxy
npm config set registry http://registry.npmjs.org/

While your mileage may vary, running npm cache verify fixed the issue for me.

I had the same problem. The reason - wrong proxy was configured and because of that npm was unable to download packages.

So your best bet is to the see the output of

$ npm install --verbose

and identify the problem. If you have never configured proxy, then possible causes can be

• Very outdated npm version.
• Some problem with your internet connection.
• Permissions are not sufficient for npm to modify files.

I just turn off my windows firewall and it worked for me. You can also try different versions of npm.

When your ssh key is password protected run ssh-add. npm probably hangs somewhere asking for your password.

*Try doing sudo npm install.

*If you're using github then it could be you don't have permission and need to generated a public SSH key and add it to your settings account: (https://help.github.com/articles/generating-ssh-keys/)

I am behind a corporate proxy, so I usually use an intermediate proxy to enable NTLM authentication.

I had hangs problem with npm install when using CNTLM proxy. With NTLM-APS (a similar proxy) the hangs were gone.

Check your .npmrc file for a registry entry (which identifies a server acting as a package cache.)

For me, npm install would hang partway through, and it was because of a old / non-responsive server listed in my .npmrc file. Remove the line or comment it out:

>cat ~/.npmrc
#registry=http://oldserver:4873

(And/or check with your IT / project lead as to why it's not working ;)

The registry(https://registry.npmjs.org/cordova) was blocked by our firewall. Unblocking it fixed the issue.

You can try deleting package-lock.json and running npm install afterwards. This worked for me.

install nvm (Node Version Manager) and downgrade node version from 14 to 12 solved the issue in my case

I was having the same problem. I tried a

npm config set registry http://registry.npmjs.org/

to turn off https. I also tried

npm set progress=false 

to turn off the progress bar (it has been reported to slow down downloads).

The problem was with my network driver. I just needed to reboot and the lag went away.

check your environment variables for http and https

The existing entries might be creating some issues. Try deleting those entries.

Run "npm install" again.