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How to Handle Errors in Angular Reactive Forms With 3 Lines ...

For every single error that may occur you need to write another mat-error tag, check if the error is present, and set an appropriate message ...

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查詢 「Mat-error」的人也找了：

  1. error error: mat-form-field must contain a matformfieldcontrol
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  3. Mat-form-field' is not a known element
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  4. MatFormFieldControl
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  5. mat-icon
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  6. mat-select
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  7. matInput
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  8. mat-form-field width
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