Angular 2 - Pipe reuse in multiple modules - error not found or duplicate definition
If you want to use the pipe in a different module, then add the module where the pipe is declared to imports: [...] of the module where you want to re-use the pipe, instead of adding it to declarations: [] of multiple modules.
For example:
@NgModule({ imports: [], declarations: [JsonStringifyPipe], exports: [JsonStringifyPipe]})export class JsonStringifyModule { }@NgModule({ imports: [ BrowserModule, HttpModule, routing, FormsModule, SettingsModule, JsonStringifyModule], declarations: [AppComponent], bootstrap: [AppComponent]})export class AppModule { }@NgModule({ imports: [ CommonModule, HttpModule, FormsModule, routing, JsonStringifyModule], declarations: [SettingsComponent], exports: [SettingsComponent], providers: []})export class SettingsModule { }