Angular CLI + Angular Material {MatButtonModule} breaks angular build · Issue #11100 · angular/components · GitHub
![css - Why is the expected Material button style not applied immediately when my Angular application loads, only later? - Stack Overflow css - Why is the expected Material button style not applied immediately when my Angular application loads, only later? - Stack Overflow](https://i.stack.imgur.com/FATIx.png)
css - Why is the expected Material button style not applied immediately when my Angular application loads, only later? - Stack Overflow
![Raspberry PI (3B,4B) Micro Switch 2X2 Matrix 4 button module MCU development board, external keyboard. Raspberry PI (3B,4B) Micro Switch 2X2 Matrix 4 button module MCU development board, external keyboard.](https://abra-electronics.com/images/detailed/162/KB-MAT-2X2.jpg)
Raspberry PI (3B,4B) Micro Switch 2X2 Matrix 4 button module MCU development board, external keyboard.
![✓ 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)
✓ NG8001: 'mat-icon' is not a known element: Error occurs in the template of component xxComponent. - YouTube
![MatButtonModule: mat-raised-button not working in child component within a module · Issue #24144 · angular/components · GitHub MatButtonModule: mat-raised-button not working in child component within a module · Issue #24144 · angular/components · GitHub](https://user-images.githubusercontent.com/38015612/147723150-350d59aa-78d3-4aa8-a5c9-ca2d7fca32a8.png)