出錯。無法讀取的不確定

Question

財產「getSymbolByModule」當我升級到角4和運行NG發球，我得到了以下錯誤：

ERROR in Cannot read property 'getSymbolByModule' of undefined 

的依賴是每個以下

"dependencies": { 
    "@angular/animations": "^4.0.2", 
    "@angular/cli": "^1.0.0", 
    "@angular/common": "^4.0.2", 
    "@angular/compiler": "^4.0.2", 
    "@angular/compiler-cli": "^2.4.10", 
    "@angular/core": "^4.0.2", 
    "@angular/forms": "^4.0.2", 
    "@angular/http": "^4.0.2", 
    "@angular/platform-browser": "^4.0.2", 
    "@angular/platform-browser-dynamic": "^4.0.2", 
    "@angular/platform-server": "^4.0.2", 
    "@angular/router": "^4.0.2", 
    "@types/jasmine": "^2.5.47", 
    "angular2-flash-messages": "^1.0.8", 
    "angular2-jwt": "^0.1.28", 
    "codelyzer": "^2.1.1", 
    "core-js": "^2.4.1", 
    "jasmine-spec-reporter": "^2.7.0", 
    "karma": "^1.6.0", 
    "rxjs": "^5.3.0", 
    "ts-helpers": "^1.1.2", 
    "ts-node": "^1.7.3", 
    "typescript": "^2.0.10", 
    "zone.js": "^0.8.5" 
    }, 

作爲

這裏有什麼不對嗎？

Answer 1

這似乎是一個相對於@angular/platform-browser的問題。 您的@angular/platform-browser和您的@angular/cli版本之間存在衝突。嘗試更新你的角度/ cli到最新。討論過同樣的問題here

Answer 2

您還需要將@ angular/compiler-cli更新爲版本4。

"@angular/compiler-cli": "4.0.2", 

Answer 3

我有同樣的問題，但我在devDependencies也有一個版本的角CLI。我刪除了，ng-serve工作。