Angular2錯誤標記必須定義

我在使用angular-cli時出現以下錯誤。Angular2錯誤標記必須定義

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]

來源

2017-02-21 Rohit

請張貼完整的錯誤消息文本。 –

你能提供更多的信息嗎？ –

這是我從瀏覽器獲得的唯一信息，我無法運行我的應用程序。我正在使用angular-cli – Rohit

我在做一個新的NPM從工作項目安裝後收到了同樣的錯誤。使用下面的「^」檢查Package.json文件的依賴關係，例如zone.js。刪除「^」使npm安裝指定的版本，而不是更晚的版本。

然後重新安裝node_modules，它應該工作

"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"

來源

2017-02-21 14:27:22

Angular2錯誤標記必須定義

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