![✓ 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/Etj4vNgHz0Y/hqdefault.jpg?sqp=-oaymwEiCKgBEF5IWvKriqkDFQgBFQAAAAAYASUAAMhCPQCAokN4AQ==&rs=AOn4CLCXOEzclkKfUXTD21UuccMFCEAjWQ)
✓ NG8001: 'mat-icon' is not a known element: Error occurs in the template of component xxComponent. - YouTube
![Angular Error NG8001: is not a known element Angular component, then verify part of this module - YouTube Angular Error NG8001: is not a known element Angular component, then verify part of this module - YouTube](https://i.ytimg.com/vi/EcIXA-DptI4/sddefault.jpg)
Angular Error NG8001: is not a known element Angular component, then verify part of this module - YouTube
![✓ 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
![✓ 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/p4GhR3fC124/hqdefault.jpg?sqp=-oaymwEiCKgBEF5IWvKriqkDFQgBFQAAAAAYASUAAMhCPQCAokN4AQ==&rs=AOn4CLB8Ni1I1lUbnZRtp15mrQHOtCl6YQ)
✓ 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 ✓ NG8001: 'mat-icon' is not a known element: Error occurs in the template of component xxComponent. - YouTube](https://i.ytimg.com/vi/GasbyPiONg4/hqdefault.jpg?sqp=-oaymwEiCKgBEF5IWvKriqkDFQgBFQAAAAAYASUAAMhCPQCAokN4AQ==&rs=AOn4CLBp_mJzzcFb6MWb4eYt1PibX-ALTQ)