我使用的是最新的角度5,我正在使用以下异常
ERROR Error: StaticInjectorError(AppModule)[AppComponent -> ActivatedRoute]:
StaticInjectorError(Platform: core)[AppComponent -> ActivatedRoute]:
NullInjectorError: No provider for ActivatedRoute!
at _NullInjector.get (core.js:1002)
at resolveToken (core.js:1300)
at tryResolveToken (core.js:1242)
at StaticInjector.get (core.js:1110)
at resolveToken (core.js:1300)
at tryResolveToken (core.js:1242)
at StaticInjector.get (core.js:1110)
at resolveNgModuleDep (core.js:10854)
at NgModuleRef_.get (core.js:12087)
at resolveDep (core.js:12577)
app.module.ts如下所示 从'@ angular / router'导入{Routes,RouterModule};
@NgModule({
declarations: [
AppComponent,
OptyDetailsComponent,
GlobalNavbarComponent
],
imports: [
BrowserAnimationsModule,
BrowserModule,
HttpModule,
HttpClientModule,
FlexLayoutModule,
FormsModule,
MatButtonModule,
MatInputModule
RouterModule
],
entryComponents: [
],
providers: [
DataStoreService,
DataObjectsOscService,
AdobeSignService,
],
bootstrap: [AppComponent]
})
export class AppModule { }
答案 0 :(得分:26)
为了能够在角度元素中提供ActivatedRoute
,您需要将调用RouterModule.forRoot
的结果导入到根模块(AppModule)中。这是因为RouterModule.forRoot
返回的模块包括ActivatedRoute
实例的提供程序等。
所以基本上你需要在根模块中的导入中添加以下内容:
@NgModule({
...
imports: [
...
// Remark: because you havent defined any routes, I have to pass an empty
// route collection to forRoot, as the first parameter is mandatory.
RouterModule.forRoot([]),
...
],
...
})
export class AppModule { }
但说实话,尽管您没有为根模块定义任何路由,但使用ActivatedRoute
有点奇怪。
有关详细信息,请参阅: