Router : undefined component throws Cannot read property annotations of undefined · Issue #9414 · angular/angular · GitHub
RouterEvent url property ultimately undefined when subscribed to NavigationEnd event · Issue #25322 · angular/angular · GitHub
![unit testing - Failed: Uncaught (in promise): Error: Cannot match any routes. URL Segment: 'login'. Jasmine & Angular 6 - Stack Overflow unit testing - Failed: Uncaught (in promise): Error: Cannot match any routes. URL Segment: 'login'. Jasmine & Angular 6 - Stack Overflow](https://i.stack.imgur.com/oN8Pg.png)
unit testing - Failed: Uncaught (in promise): Error: Cannot match any routes. URL Segment: 'login'. Jasmine & Angular 6 - Stack Overflow
![cannot read properties of undefined (reading 'queryparams') karma - You.com | The search engine you control. cannot read properties of undefined (reading 'queryparams') karma - You.com | The search engine you control.](https://user-images.githubusercontent.com/26578635/173279506-02394e47-7751-4941-a559-4ad5f78faf34.png)