[TypeError [ERR_INVALID_ARG_TYPE]: The "path" argument must be of type string. Received undefined

表白:黑白圣堂血天使,天剑鬼刀阿修罗。 
讲解对象:/[TypeError [ERR_INVALID_ARG_TYPE]: The "path" argument must be of type string. Received undefined
作者:融水公子 rsgz
Node.js教程

Node.js教程 http://www.rsgz.top/post/110.html

相关报错:[TypeError [ERR_INVALID_ARG_TYPE]: The "path" argument must be of type string. Received undefined
 code: 'ERR_INVALID_ARG_TYPE'

在安装镜像管理工具,然后查看镜像列表,突然有报错:

>npm install -g nrm
>nrm ls

报错: code: 'ERR_INVALID_ARG_TYPE'

这是全部报错:

C:\Users\Administrator\my-website>nrm ls
internal/validators.js:124
    throw new ERR_INVALID_ARG_TYPE(name, 'string', value);
    ^
[TypeError [ERR_INVALID_ARG_TYPE]: The "path" argument must be of type string. Received undefined
  at validateString (internal/validators.js:124:11)
  at Object.join (path.js:375:7)
  at Object.<anonymous> (C:\Users\Administrator\AppData\Roaming\npm\node_modules\nrm\cli.js:17:20)
  at Module._compile (internal/modules/cjs/loader.js:1063:30)
  at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
  at Module.load (internal/modules/cjs/loader.js:928:32)
  at Function.Module._load (internal/modules/cjs/loader.js:769:14)
  at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:72:12)
  at internal/main/run_main_module.js:17:47
] {
  code: 'ERR_INVALID_ARG_TYPE'
}

我提供两种办解决:
方案1:
根据我的经验:换种方式使用命令,windows用户需要npm.cmd代替cmd命令使用

>npm.cmd install -g nrm
>nrm.cmd ls

方案2:
对你的nrm包做一个降级处理,因为你刚下载包默认的都是最新的,最新的包一般都和你当前环境的包有一些不兼容。

查看一下有哪些版本>npm view nrm versions
'1.1.0', '1.2.0', '1.2.1'

选择全局安装1.1.0版本
npm install -g nrm@1.1.0 --save

>nrm ls
* npm ---- https://registry.npmjs.org/
  cnpm --- http://r.cnpmjs.org/
  taobao - https://registry.npm.taobao.org/
  nj ----- https://registry.nodejitsu.com/
  npmMirror  https://skimdb.npmjs.com/registry/
  edunpm - http://registry.enpmjs.org/

可以看到错误完美解决!

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