![Conflicting components: MatFormField,MatFormField while Testing with Angular 8 · Issue #18425 · angular/components · GitHub Conflicting components: MatFormField,MatFormField while Testing with Angular 8 · Issue #18425 · angular/components · GitHub](https://user-images.githubusercontent.com/18212861/73993208-426e3c80-4930-11ea-9797-a099c2baa5a4.png)
Conflicting components: MatFormField,MatFormField while Testing with Angular 8 · Issue #18425 · angular/components · GitHub
![NG8001: 'mat-icon' is not a known element: Error occurs in the template of component xxComponent. - YouTube NG8001: 'mat-icon' is not a known element: Error occurs in the template of component xxComponent. - YouTube](https://i.ytimg.com/vi/BohDli1JKNc/maxresdefault.jpg?sqp=-oaymwEmCIAKENAF8quKqQMa8AEB-AHUBoAC4AOKAgwIABABGEwgWihlMA8=&rs=AOn4CLA9fHIF8lnilzGoljWWoHT0ZBtMRw)
NG8001: 'mat-icon' is not a known element: Error occurs in the template of component xxComponent. - YouTube
![html - Angular 10 Compile Error "error NG8001: 'mat-card-title' is not a known element: - Stack Overflow html - Angular 10 Compile Error "error NG8001: 'mat-card-title' is not a known element: - Stack Overflow](https://i.stack.imgur.com/rwURq.png)
html - Angular 10 Compile Error "error NG8001: 'mat-card-title' is not a known element: - Stack Overflow
![✓ NG8001: 'mat-icon' is not a known element: Error occurs in the template of component xxComponent. - YouTube ✓ NG8001: 'mat-icon' is not a known element: Error occurs in the template of component xxComponent. - YouTube](https://i.ytimg.com/vi/BohDli1JKNc/mqdefault.jpg)
✓ NG8001: 'mat-icon' is not a known element: Error occurs in the template of component xxComponent. - YouTube
![👁🗨 Angular Errors NG8001 'mat-form-field' is not a known element + NG8002: Can't bind to 'ngModel' since it isn't a known property of 'input'. 👁🗨 Angular Errors NG8001 'mat-form-field' is not a known element + NG8002: Can't bind to 'ngModel' since it isn't a known property of 'input'.](https://readdy.net/User_Files/Notes/Images/Image_1856_0_blog.jpg)
👁🗨 Angular Errors NG8001 'mat-form-field' is not a known element + NG8002: Can't bind to 'ngModel' since it isn't a known property of 'input'.
![Error: mat-form-field must contain a MatFormFieldControl. · Issue #7898 · angular/components · GitHub Error: mat-form-field must contain a MatFormFieldControl. · Issue #7898 · angular/components · GitHub](https://user-images.githubusercontent.com/33057497/38612904-bf97a8c4-3da5-11e8-9c5e-570bec3da6b4.png)
Error: mat-form-field must contain a MatFormFieldControl. · Issue #7898 · angular/components · GitHub
![WebStorm: Angular Material HTML tags shown as 'not a known element' but compiles and works fine - Stack Overflow WebStorm: Angular Material HTML tags shown as 'not a known element' but compiles and works fine - Stack Overflow](https://i.stack.imgur.com/ouPzp.png)