internal/validators.js:112
    throw new ERR_INVALID_ARG_TYPE(name, 'string', value);
    ^

[TypeError [ERR_INVALID_ARG_TYPE]: The "path" argument must be of type string. Received type undefined
  at validateString (internal/validators.js:112:11)
  at Object.join (path.js:375:7)
  at Object.<anonymous> (C:\Users\wy\AppData\Roaming\npm\node_modules\nrm\cli.js:17:20)
  at Module._compile (internal/modules/cjs/loader.js:955:30)
  at Module.load (internal/modules/cjs/loader.js:811:32)
  at Function.Module._load (internal/modules/cjs/loader.js:723:14)
  at Function.Module.runMain (internal/modules/cjs/loader.js:1043:10)
  at internal/main/run_main_module.js:17:11
] {
  code: 'ERR_INVALID_ARG_TYPE'
}

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