在启动项目时在Angular 2中出现错误

Question

我是angular 2的新手。我已经安装了我的项目并尝试通过npm启动它，之前它工作正常，然后在启动它的几天后，它给出以下命令提示符错误。

SyntaxError: Unexpected token { 
at exports.runInThisContext (vm.js:53:16) 
at Module._compile (module.js:374:25) 
at Object.Module._extensions..js (module.js:417:10) 
at Module.load (module.js:344:32) 
at Function.Module._load (module.js:301:12) 
at Module.require (module.js:354:17) 
at require (internal/module.js:12:17) 
at Object.<anonymous> (/home/ahmer/practice/gmail-angular2/node_modules/@ngtools/webpack/src/index.js:5:10) 
at Module._compile (module.js:410:26) 
at Object.Module._extensions..js (module.js:417:10) 
at Module.load (module.js:344:32) 
at Function.Module._load (module.js:301:12) 
at Module.require (module.js:354:17) 
at require (internal/module.js:12:17) 
at Object.<anonymous> (/home/ahmer/practice/gmail-angular2/node_modules/angular-cli/models/webpack-build-typescript.js:3:17) 
at Module._compile (module.js:410:26) 
at Object.Module._extensions..js (module.js:417:10) 
at Module.load (module.js:344:32) 
at Function.Module._load (module.js:301:12) 
at Module.require (module.js:354:17) 
at require (internal/module.js:12:17) 
at Object.<anonymous> (/home/ahmer/practice/gmail-angular2/node_modules/angular-cli/models/webpack-config.js:2:34) 
at Module._compile (module.js:410:26) 
at Object.Module._extensions..js (module.js:417:10) 
at Module.load (module.js:344:32) 
at Function.Module._load (module.js:301:12) 
at Module.require (module.js:354:17) 
at require (internal/module.js:12:17) 
at Object.<anonymous> (/home/ahmer/practice/gmail-angular2/node_modules/angular-cli/tasks/build-webpack.js:6:24) 
at Module._compile (module.js:410:26) 
at Object.Module._extensions..js (module.js:417:10) 
at Module.load (module.js:344:32) 
at Function.Module._load (module.js:301:12) 
at Module.require (module.js:354:17) 
at require (internal/module.js:12:17) 
at Object.<anonymous> (/home/ahmer/practice/gmail-angular2/node_modules/angular-cli/commands/build.js:4:23) 
at Module._compile (module.js:410:26) 
at Object.Module._extensions..js (module.js:417:10) 
at Module.load (module.js:344:32) 
at Function.Module._load (module.js:301:12) 
at Module.require (module.js:354:17) 
at require (internal/module.js:12:17) 
at Class.module.exports.includedCommands (/home/ahmer/practice/gmail-angular2/node_modules/angular-cli/addon/index.js:21:16) 
at /home/ahmer/practice/gmail-angular2/node_modules/angular-cli/ember-cli/lib/models/project.js:335:61 
at Array.forEach (native) 
at Project.addonCommands (/home/ahmer/practice/gmail-angular2/node_modules/angular-cli/ember-cli/lib/models/project.js:334:15) 
at Project.eachAddonCommand (/home/ahmer/practice/gmail-angular2/node_modules/angular-cli/ember-cli/lib/models/project.js:369:30) 
at module.exports (/home/ahmer/practice/gmail-angular2/node_modules/angular-cli/ember-cli/lib/cli/lookup-command.js:33:13) 
at CLI.<anonymous> (/home/ahmer/practice/gmail-angular2/node_modules/angular-cli/ember-cli/lib/cli/cli.js:43:26) 
at tryCatch (/home/ahmer/practice/gmail-angular2/node_modules/rsvp/dist/rsvp.js:538:12) 
at invokeCallback (/home/ahmer/practice/gmail-angular2/node_modules/rsvp/dist/rsvp.js:553:13) 
at publish (/home/ahmer/practice/gmail-angular2/node_modules/rsvp/dist/rsvp.js:521:7) 
at flush (/home/ahmer/practice/gmail-angular2/node_modules/rsvp/dist/rsvp.js:2373:5) 
at nextTickCallbackWith0Args (node.js:419:9) 
at process._tickCallback (node.js:348:13) 

任何想法如何解决？

Answer 1

我相信你已经创建了一个较小的角度CLI版本的项目。 我自己有更新我的角度cli版本后最新相同的错误。 Angular CLI在前期更新，因此它需要节点版本6.9.0或更高版本以及npm版本3或更高版本。 https://github.com/angular/angular-cli#prerequisites

tldr：您必须更新您的节点版本