在 IE10 中升级到 Angular2 RC5 后没有 PlatformRef 错误的提供者

Question

我刚刚升级到 Angular2 RC5。该应用程序在所有浏览器中都能正常加载，IE10 除外。当我 bootstrap 应用程序时，我得到一个异常 "No provider for PlatformRef!"。在 RC4 中一切正常。我在网上看到一些关于这个异常的帖子，但它们都与Meteor有关。我不使用流星。我的项目源自 AngularSeed（我手动更新到 RC5 的先前版本）。关于如何解决这个问题的任何想法？谢谢！

在 IE10 中，我得到这个错误：

No provider for PlatformRef!  
{
  [functions]: ,
  context: <Permission denied>,
  injectors: [ ],
  keys: [ ],
  message: "No provider for PlatformRef!",
  name: "Error",
  stack: undefined,
  Symbol()_m.sovohbnexgu: undefined,
  Symbol()_n.sovohbnexgu: undefined,
  Symbol()_o.sovohbnexgu: undefined,
  Symbol(rxSubscriber)_p.sovohbnexgu: undefined
}

main.ts:

import { enableProdMode } from '@angular/core';
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { AppModule }              from './app.module';

enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);

应用模块：

import { provide, NgModule, ExceptionHandler } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { RouterModule } from '@angular/router';
import { HttpModule } from '@angular/http';
import { FormsModule } from '@angular/forms';

import { AppComponent } from './components/app/app.component';
import { AppExceptionHandler } from './app.exceptionhandler';
import { AppRoutes } from './app.routes';
import { LogService, ... } from './services/';

@NgModule({
    declarations: [AppComponent, ...],
    imports: [BrowserModule,
              RouterModule.forRoot(AppRoutes),
              HttpModule,
              FormsModule],
    providers: [provide(ExceptionHandler, { useClass: AppExceptionHandler }), LogService, ...],
    bootstrap: [AppComponent],
})
export class AppModule { }

依赖版本：

"@angular/common": "2.0.0-rc.5",
"@angular/compiler": "2.0.0-rc.5",
"@angular/core": "2.0.0-rc.5",
"@angular/forms": "0.3.0",
"@angular/http": "2.0.0-rc.5",
"@angular/platform-browser": "2.0.0-rc.5",
"@angular/platform-browser-dynamic": "2.0.0-rc.5",
"@angular/router": "3.0.0-rc.1",
"es6-module-loader": "^0.17.8",
"core-js": "^2.4.0",
"rxjs": "5.0.0-beta.6",
"systemjs": "0.19.27",
"zone.js": "0.6.13",

编辑：如果我尝试将 PlatformRef 添加到 @NgModule 导入中，我会收到此错误：

shims.js?1472473326356:4 Uncaught TypeError: Cannot read property 'type' of null(anonymous function) 
@ app.js?1472473326358:5getTransitiveModules 
@ app.js?1472473326358:5CompileMetadataResolver._getTransitiveNgModuleMetadata 
@ app.js?1472473326358:5CompileMetadataResolver.getNgModuleMetadata 
@ app.js?1472473326358:5RuntimeCompiler._compileComponents 
@ app.js?1472473326358:3RuntimeCompiler._compileModuleAndComponents 
@ app.js?1472473326358:3RuntimeCompiler.compileModuleAsync 
@ app.js?1472473326358:3PlatformRef_._bootstrapModuleWithZone 
@ app.js?1472473326358:48PlatformRef_.bootstrapModule 
@ app.js?1472473326358:48bootstrapper 
@ app.js?1472473326358:57(anonymous function) 
[...]

我在 IE 上得到这个堆栈：

"TypeError: Unable to get property 'type' of undefined or null reference
   at Anonymous function (eval code:13673:13)
   at Call (http://localhost:5555/node_modules/es6-shim/es6-shim.js?1472473192889:289:7)
   at forEach (http://localhost:5555/node_modules/es6-shim/es6-shim.js?1472473192889:1295:7)
   at getTransitiveModules (eval code:13672:9)
   at CompileMetadataResolver.prototype._getTransitiveNgModuleMetadata (eval code:13387:13)
   at CompileMetadataResolver.prototype.getNgModuleMetadata (eval code:13259:17)
   at RuntimeCompiler.prototype._compileComponents (eval code:15845:13)
   at RuntimeCompiler.prototype._compileModuleAndComponents (eval code:15769:13)
   at RuntimeCompiler.prototype.compileModuleAsync (eval code:15746:13)
   at PlatformRef_.prototype._bootstrapModuleWithZone (eval code:9991:13)"

Answer 1

我认为您应该在从 @angular/core 导入 PlatformRef 并将其添加到您的 AppModule 文件的 NgModule 的 imports 配置后进行检查。

Answer 2

解决方案是从依赖项中删除 es6-shim。现在工作正常。

在 IE10 中升级到 Angular2 RC5 后没有 PlatformRef 错误的提供者

No provider for PlatformRef error after upgrading to Angular2 RC5 in IE10

internet-explorer

angular

internet-explorer-10

angular-seed