转自:https://blog.csdn.net/u010142437/article/details/79012605
错误显示：
Error: Cannot find module 'ejs'
at Function.Module._resolveFilename (module.js:325:15)
at Function.Module._load (module.js:276:25)
at Module.require (module.js:353:17)
at require (internal/module.js:12:17)
at new View (d:\WebClient\webstormSpace\day6shuoshuo\node_modules\express\lib\view.js:78:30)
at EventEmitter.render (d:\WebClient\webstormSpace\day6shuoshuo\node_modules\express\lib\application.js:569:12)
at ServerResponse.render (d:\WebClient\webstormSpace\day6shuoshuo\node_modules\express\lib\response.js:961:7)
at exports.showIndex (d:\WebClient\webstormSpace\day6shuoshuo\routes\router.js:7:9)
at Layer.handle [as handle_request] (d:\WebClient\webstormSpace\day6shuoshuo\node_modules\express\lib\router\layer.js:95:5)
at next (d:\WebClient\webstormSpace\day6shuoshuo\node_modules\express\lib\router\route.js:131:13)
原因：没有安装ejs模块
解决办法：
cmd进入到项目目录，安装ejs：npm install --save ejs
