not able to install node_modules

问题:

I am trying to install node_module but getting following error:

For example:npm install grunt-preprocess

D:\grunt_pre>npm install grunt-preprocess
 npm http GET https://registry.npmjs.org/grunt-preprocess
 npm http GET https://registry.npmjs.org/grunt-preprocess
 npm http GET https://registry.npmjs.org/grunt-preprocess
 npm ERR! Error: connect ETIMEDOUT
 npm ERR!     at errnoException (net.js:901:11)
 npm ERR!     at Object.afterConnect [as oncomplete] (net.js:892:19)
 npm ERR! If you need help, you may report this log at:
 npm ERR!     <http://github.com/isaacs/npm/issues>
 npm ERR! or email it to:
 npm ERR!     <[e-mail]>

 npm ERR! System Windows_NT 6.1.7601
 npm ERR! command "C:\\Program Files\\nodejs\\\\node.exe" "C:\\Program Files\\nod
 ejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "grunt-preprocess"
 npm ERR! cwd D:\grunt_pre
 npm ERR! node -v v0.10.15
 npm ERR! npm -v 1.3.5
 npm ERR! syscall connect
 npm ERR! code ETIMEDOUT
 npm ERR! errno ETIMEDOUT
 npm ERR!
 npm ERR! Additional logging details can be found in:
 npm ERR!     D:\grunt_pre\npm-debug.log
 npm ERR! not ok code 0

回答1:

The registry URL is pointing to https, you could try changing it by

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

and then try installing the module. It may be possible that you are behind a proxy that is blocking secure (https) connections

If it doesn't work then may be you could manually try to download the current version of the module you are trying to install from the here

And run the command npm install grunt-preprocess-2.3.0.tgz

回答2:

I also had ETIMEDOUT errors and was able to resolve the issue by disabling my router's firewall, rebooting it, and most importantly, configuring the number of simultaneous connections with the following npm command:

npm set maxsockets 3

This sets a max number of connections of 3, instead of the default 50. The CLI has been allowing this option since npm@3.8.0. See this link for further reference.

回答3:

I'm getting the exact same thing. Either the module exists but the actual download repository is down or there is a problem with npm at the moment. Try again in a few days or report it to the github link.

Edit:

The error you are getting is a timeout from their server or your connection. It could be because you are behind a firewall/proxy that is stopping your connections.

回答4:

Try the answer by @ Canmah. If it does not help try to check your proxy configuration.

If there is a proxy, update the npm registry as mentioned below and then try installing the node module.

@ the command prompt update the 
npm config set proxy <proxyserver>:<port>

回答5:

This might be a problem with module bin-wrapper which does not respect proxies and that is why you see the ETIMEDOUT error when trying to download.

To solve the issue you can set the environment variable HTTP_PROXY and/ or HTTPS_PROXY.
Works under Windows/ Linux.

The solved bin-wrapper issue.
Commit with fix.

The code piece in the fix:

var proxyServer = process.env.HTTPS_PROXY || 
                  process.env.https_proxy ||
                  process.env.HTTP_PROXY ||
                  process.env.http_proxy;