Global Node modules not installing correctly. Command not found

问题:

I am having a problem installing global node modules and everything I find online says the solve is just adding -g. Which is not the problem. I believe it's a linking issue or wrong directory issue.

Here is what I do:

$ npm install -g express npm http GET https://registry.npmjs.org/express npm http 304 https://registry.npmjs.org/express npm http GET https://registry.npmjs.org/range-parser/0.0.4 npm http GET https://registry.npmjs.org/mkdirp/0.3.3 ...downloads correctly  $ express myapp bash: express: command not found 

However when I run the direct link location to express it works:

   $ /usr/local/share/npm/bin/express myapp     create : myapp    create : myapp/package.json    create : myapp/app.js ... Builds app correctly 

Where the module is:

$ which node /usr/local/bin/node $ node -pe process.execPath /usr/local/Cellar/node/0.8.20/bin/node $ npm link express /Users/bentonrr/Development/Personal/node_modules/express -> /usr/local/share/npm/lib/node_modules/express 

In my .bash_profile I have:

export PATH=/usr/local/bin:$PATH export NODE_PATH=/usr/local/lib/node_modules:/usr/local/lib/node 

Do I need to change my Node environment to download to correct folder? Is something not linking correctly? I am lost..

Thanks!

Other Specs:

$ node --version v0.8.20 $ npm --version 1.2.11 $ brew --version 0.9.4 OSX Version 10.8.2 

回答1:

Add /usr/local/share/npm/bin to your PATH (e.g., in .bashrc).

For more info, see npm help npm:

global mode: npm installs packages into the install prefix at prefix/lib/node_modules and bins are installed in prefix/bin.

You can find the install prefix with npm get prefix or npm config list | grep prefix.

回答2:

This may mean your node install prefix isn't what you expect.

You can set it like so:

npm config set prefix /usr/local

then try running npm install -g again, and it should work out. Worked for me on a mac, and the solution comes from this site:

http://webbb.be/blog/command-not-found-node-npm/

EDIT: Note that I just came across this again on a new Mac I'm setting up, and had to do the process detailed here on stackoverflow as well.

回答3:

I don't install any npm stuff, via sudo, ever! I have my own reasons, but I just try to keep things simple, and user based, since this is a user development world, and not everyone has root access, and root/sudo installing things like this just seems to clutter up things to begin with. After all, all developers should be able to follow these instructions, not just privileged sudo users.

This particular system is a RHEL7 accessed via SSH:

Frequently one needs various versions of node, so I use NVM https://github.com/creationix/nvm

So with that said, I can show you a working example for -g global installs, using NVM, NPM, and node paths not using root.

set your prefix for .npm-packages if it isn't already. (note, thats a hyphen, not an underscore)

nvm config ls prefix = "/home//.npm-packages" 

Then adjust your ~/.bash_profile or .bashrc if you prefer readup on why and which here, with the following information.

#PATH EXPORTS NODE_MODULES=$HOME/.npm                                           NPM_PACKAGES=$HOME/.npm-packages/bin                            export PATH=$PATH:$HOME/bin:$NODE_MODULES:$NPM_PACKAGES           #NVM ENABLE                                                  export NVM_DIR="$HOME/.nvm"                                    [ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh" # This loads nvm  

That pretty much covers all paths. For e.g., if you install gulp like this npm install -g gulp it symlinks in ~/.npm-packages/bin (note thats a hyphen, not an underscore). (no need for gulp-cli, or gulp-cl)

You can pretty much replace/comment-out all other node path exports. You can put this path info below any other path info you already have, safely, without it overwriting that stuff.

回答4:

Steps

First, remove Node:

 sudo rm -rf /usr/local/lib/node_modules/jitsu  npm cache clear  sudo npm install jitsu -g 

Second, create .bash_rc:

 vi ~/.bash_rc 

Copy following items and paste into the file, opened in step 2:

 [[ -s  ~/.bashrc ]] && source ~/.bashrc  export PATH=/usr/local/share/npm/bin:$PATH 

Run Jitsu. Run vi ~/.bash_profile, this is what you should see:

 [[ -s  ~/.bashrc ]] && source ~/.bashrc  export PATH=/usr/local/share/npm/bin:$PATH   # {{{  # Node Completion - Auto-generated, do not touch.  shopt -s progcomp  for f in $(command ls ~/.node-completion); do    f="$HOME/.node-completion/$f"    test -f "$f" && . "$f"  done  # }}} 

I found the answer for removing Node from this article: JITSU FAILED TO INSTALL OSX [node 0.8.17 and NPM 1.2.0] WTF

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