Angular2错误标记必须定义

我在使用angular-cli时出现以下错误。Angular2错误标记必须定义

Error: Token must be defined! 
    at new ReflectiveKey (http://localhost:4200/vendor.bundle.js:48893:19) [angular] 
    at KeyRegistry.get (http://localhost:4200/vendor.bundle.js:48946:39) [angular] 
    at Function.ReflectiveKey.get (http://localhost:4200/vendor.bundle.js:48911:35) [angular] 
    at ReflectiveInjector_.get (http://localhost:4200/vendor.bundle.js:117530:102) [angular] 
    at AppModuleInjector.NgModuleInjector.get (http://localhost:4200/vendor.bundle.js:66988:52) [angular] 
    at RouterInitializer.appInitializer (http://localhost:4200/vendor.bundle.js:73780:48) [angular] 
    at new ApplicationInitStatus (http://localhost:4200/vendor.bundle.js:46874:45) [angular] 
    at AppModuleInjector.createInternal (/AppModule/module.ngfactory.js:424:36) [angular] 
    at AppModuleInjector.NgModuleInjector.create (http://localhost:4200/vendor.bundle.js:66971:76) [angular] 
    at NgModuleFactory.create (http://localhost:4200/vendor.bundle.js:66939:18) [angular] 
    at http://localhost:4200/vendor.bundle.js:47309:61 [angular] 
    at Object.onInvoke (http://localhost:4200/vendor.bundle.js:37314:37) [angular]

来源

2017-02-21 Rohit

请张贴完整的错误消息文本。 –

你能提供更多的信息吗？ –

这是我从浏览器获得的唯一信息，我无法运行我的应用程序。我正在使用angular-cli – Rohit

我在做一个新的NPM从工作项目安装后收到了同样的错误。使用下面的“^”检查Package.json文件的依赖关系，例如zone.js。删除“^”使npm安装指定的版本，而不是更晚的版本。

然后重新安装node_modules，它应该工作

"dependencies": { 
"@angular/common": "2.4.2", 
"@angular/compiler": "2.4.2", 
"@angular/core": "2.4.2", 
"@angular/forms": "2.4.2", 
"@angular/http": "2.4.2", 
"@angular/material": "2.0.0-beta.1", 
"@angular/platform-browser": "2.4.2", 
"@angular/platform-browser-dynamic": "2.4.2", 
"@angular/router": "^3.4.2", 
"@ngrx/core": "^1.1.0", 
"@ngrx/effects": "^2.0.0", 
"@ngrx/store": "^2.1.2", 
"@ngrx/store-devtools": "^3.2.3", 
"core-js": "^2.4.1", 
"material-design-icons": "^3.0.1", 
"reflect-metadata": "^0.1.3", 
"reselect": "^2.5.4", 
"rxjs": "5.0.1", 
"systemjs": "0.19.27", 
"zone.js": "^0.7.2"

来源

2017-02-21 14:27:22

Angular2错误标记必须定义

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