npm不强制时从caching安装tar包

我正在使用Node v5.0.0和npm v3.3.6，并且遇到与tar包非常孤立的问题。 由于企业防火墙，我被迫克隆Git仓库并从中安装

我的问题是，尽pipe强制npm从caching中安装软件包， tar是唯一坚持从npm的registry中下载的软件包。

 $ npm install tar@2.2.1 --verbose --cache-min=999999999999 npm info it worked if it ends with ok npm verb cli [ 'C:\\Program Files\\nodejs\\node.exe', npm verb cli 'C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js', npm verb cli 'install', npm verb cli 'tar@2.2.1', npm verb cli '--verbose', npm verb cli '--cache-min=999999999999' ] npm info using npm@3.3.6 npm info using node@v5.0.0 npm verb get http://registry.npmjs.org/tar not expired, no request npm verb cache add spec tar@2.2.1 npm verb addNamed "2.2.1" is a plain semver version for tar npm verb addNameVersion registry:http://registry.npmjs.org/tar not in flight; fetching npm verb get http://registry.npmjs.org/tar not expired, no request npm verb addRemoteTarball http://registry.npmjs.org/tar/-/tar-2.2.1.tgz not in flight; adding npm verb addRemoteTarball [ 'http://registry.npmjs.org/tar/-/tar-2.2.1.tgz', npm verb addRemoteTarball '8e4d2a256c0e2185c6b18ad694aec968b83cb1d1' ] npm info retry fetch attempt 1 at 8:38:23 AM npm info attempt registry request try #1 at 8:38:23 AM npm http fetch GET http://registry.npmjs.org/tar/-/tar-2.2.1.tgz npm verb request id b8672d43f7b2c569 npm http fetch 503 http://registry.npmjs.org/tar/-/tar-2.2.1.tgz npm info retry will retry, error on last attempt: Error: server error 503 

我已经仔细检查了我的caching，可以看到，tar v2.2.1实际上是现在和function。

 $ npm cache list | grep 'tar\\2.2.1' ~\AppData\Roaming\npm-cache\tar\2.2.1 ~\AppData\Roaming\npm-cache\tar\2.2.1\package ~\AppData\Roaming\npm-cache\tar\2.2.1\package.tgz ~\AppData\Roaming\npm-cache\tar\2.2.1\package\package.json 

为了解决这个问题，我可以通过在我的依赖关系文件夹中简单地添加项目的Git仓库来解决这个问题，并在执行npm install之前使用npm install deps/node-tar 。 但是，仍然没有解释手头的问题。