安装Node-sass时报如下错误：

Error: Cannot find module 'tough-cookie'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:594:15)
    at Function.Module._load (internal/modules/cjs/loader.js:520:25)
    at Module.require (internal/modules/cjs/loader.js:650:17)
    at require (internal/modules/cjs/helpers.js:20:18)
    at Object.<anonymous> (D:\ComputerStudy\Actual Project\mpvue\mpvue-demo\node_modules\_request@2.79.0@request\lib\cookies.js:3:13)
    at Module._compile (internal/modules/cjs/loader.js:702:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:713:10)
    at Module.load (internal/modules/cjs/loader.js:612:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:551:12)
    at Function.Module._load (internal/modules/cjs/loader.js:543:3)
× Install fail! Error: post install error, please remove node_modules before retry!
Run "C:\WINDOWS\system32\cmd.exe /d /s /c node scripts/install.js" error, exit code 1
Error: post install error, please remove node_modules before retry!
Run "C:\WINDOWS\system32\cmd.exe /d /s /c node scripts/install.js" error, exit code 1
    at ChildProcess.proc.on.code (F:\Program Files\nodejs\node_global\node_modules\cnpm\node_modules\runscript\index.js:74:21)
    at ChildProcess.emit (events.js:182:13)
    at maybeClose (internal/child_process.js:961:16)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:248:5)

用命令卸载npm rm node-sass重新再安装还是一样的错误，在网上找了好久也没解决好，请问这个怎么解决呢？