What is the best way to make the ngIf directive available for use throughout the entire project

I encountered an issue with the code snippet

<div class="flex-container" *ngIf="mail"> Some data </div>

The error message states:

Can't bind to 'ngIf' since it isn't a known property of 'div'.

What steps can I take to resolve this error?

Answer №1

To have access to common directives, import BrowserModule in the main module and CommonModule in any other modules where needed.

@NgModule({
  imports: [BrowserModule],
  ...
})
class MainModule {}

Additionally,

@NgModule({
  imports: [CommonModule],
  // Now MyComponent can utilize ngIf
  declarations: [MyComponent]
  ...
})
class SecondaryModule {}

The BrowserModule automatically exports CommonModule, eliminating the need to directly import it in the main module.

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