解决方案：

npm config set user 0 

npm config set unsafe-perm true 

报错：

Unable to save binary /var/lib/jenkins/workspace/uploadH5_download_app/download/node_modules/node-sass/vendor/linux-x64-64 : { Error: EACCES: permission denied, mkdir '/var/lib/jenkins/workspace/uploadH5_download_app/download/node_modules/node-sass/vendor'
    at Object.mkdirSync (fs.js:753:3)
    at sync (/var/lib/jenkins/workspace/uploadH5_download_app/download/node_modules/mkdirp/index.js:71:13)
    at Function.sync (/var/lib/jenkins/workspace/uploadH5_download_app/download/node_modules/mkdirp/index.js:77:24)
    at checkAndDownloadBinary (/var/lib/jenkins/workspace/uploadH5_download_app/download/node_modules/node-sass/scripts/install.js:114:11)
    at Object.<anonymous> (/var/lib/jenkins/workspace/uploadH5_download_app/download/node_modules/node-sass/scripts/install.js:157:1)
    at Module._compile (internal/modules/cjs/loader.js:689:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:700:10)
    at Module.load (internal/modules/cjs/loader.js:599:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:538:12)
    at Function.Module._load (internal/modules/cjs/loader.js:530:3)
  errno: -13,
  syscall: 'mkdir',
  code: 'EACCES',
  path:
   '/var/lib/jenkins/workspace/uploadH5_download_app/download/node_modules/node-sass/vendor' }

> node-sass@4.11.0 postinstall /var/lib/jenkins/workspace/uploadH5_download_app/download/node_modules/node-sass
> node scripts/build.js