![angular - NullInjectorError: R3InjectorError(AppModule)[RouterModule -> Router -> Function -> Function ->Function]: NullInjectorError: No provider for Function - Stack Overflow](https://i.stack.imgur.com/H0hEL.png "angular - NullInjectorError: R3InjectorError(AppModule)[RouterModule -> Router -> Function -> Function ->Function]: NullInjectorError: No provider for Function - Stack Overflow")
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![StaticInjectorError(Platform: core)[RouterScroller -> ViewportScroller] · Issue #31425 · angular/angular · GitHub](https://user-images.githubusercontent.com/17472606/61265924-33674780-a7b0-11e9-8138-c77625543862.png "StaticInjectorError(Platform: core)[RouterScroller -> ViewportScroller] · Issue #31425 · angular/angular · GitHub")
StaticInjectorError(Platform: core)[RouterScroller -> ViewportScroller] · Issue #31425 · angular/angular · GitHub
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