安装nrm报错问题解决

在安装nrm时出现不少warning，使用nrm -V或者nrm ls都有报错的状况。

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> (D:\Program Files\nodejs\node_global\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'
}

在上图标红处能够根据目录找到cli.js文件

而后将第17行的

const NRMRC = path.join(process.env.HOME, '.nrmrc');

替换成

const NRMRC = path.join(process.env[(process.platform == 'win32') ? 'USERPROFILE' : 'HOME'], '.nrmrc');