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c5a84851ea
- update `errors.ts` to annotate the error NG0403, so that the runtime can add a link to that guide when an error is thrown - update `application_ref_spec.ts` to include the new link of the error - update `errors.md` as a result of running `yarn bazel test packages/core/test` Fixes #47985 PR Close #48483
42 lines
1.6 KiB
Markdown
42 lines
1.6 KiB
Markdown
@name Bootstrapped NgModule doesn't specify which component to initialize
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@category runtime
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@shortDescription An NgModule that was used for bootstrapping does not specify which component should be initialized.
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@description
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This error means that an NgModule that was used for bootstrapping an application is missing key information for Angular to proceed with the bootstrap process.
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The error happens when the NgModule `bootstrap` property is missing (or is an empty array) in the `@NgModule` annotation and there is no `ngDoBootstrap` lifecycle hook defined on that NgModule class.
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More information about the bootstrapping process can be found in [this guide](guide/bootstrapping).
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The following examples will trigger the error.
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```typescript
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@NgModule({
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declarations: [AppComponent],
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imports: [BrowserModule, AppRoutingModule],
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providers: [],
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})
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export class AppModule {}
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// The `AppModule` is used for bootstrapping, but the `@NgModule.bootstrap` field is missing.
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platformBrowser().bootstrapModule(AppModule);
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```
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```typescript
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@NgModule({
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declarations: [AppComponent],
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imports: [BrowserModule, AppRoutingModule],
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providers: [],
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bootstrap: [],
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})
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export class AppModule {}
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// The `AppModule` is used for bootstrapping, but the `@NgModule.bootstrap` field contains an empty array.
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platformBrowser().bootstrapModule(AppModule);
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```
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@debugging
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Please make sure that the NgModule that is used for bootstrapping is setup correctly:
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- either the `bootstrap` property exists (and contains a non-empty array) in the `@NgModule` annotation
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- or the `ngDoBootstrap` method exists on the NgModule class
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