系统运行报错

Question

module.js:549

    throw err;

    ^

Error: Cannot find module 'express'

    at Function.Module._resolveFilename (module.js:547:15)

    at Function.Module._load (module.js:474:25)

    at Module.require (module.js:596:17)

    at require (internal/module.js:11:18)

    at Object.<anonymous> 

    at Module._compile (module.js:652:30)

    at Object.Module._extensions..js (module.js:663:10)

    at Module.load (module.js:565:32)

    at tryModuleLoad (module.js:505:12)

    at Function.Module._load (module.js:497:3)

明明下了express  却还是说找不到

Answer 1

全局，局部都装一下express全局安装  npm install express -g局部安装 npm install --save-dev express