Multiple apps and shared components fails on --aot

[veke]

Bug Report or Feature Request (mark with an x)

- [x] bug report -> please search issues before submitting
- [ ] feature request

Versions.

@angular/cli: 1.4.6
node: 8.5.0
os: darwin x64
@angular/animations: 4.4.4
@angular/common: 4.4.4
@angular/compiler: 4.4.4
@angular/core: 4.4.4
@angular/forms: 4.4.4
@angular/http: 4.4.4
@angular/platform-browser: 4.4.4
@angular/platform-browser-dynamic: 4.4.4
@angular/router: 4.4.4
@angular/cli: 1.4.6
@angular/compiler-cli: 4.4.4
@angular/language-service: 4.4.4
typescript: 2.3.4

Repro steps.

Create new application and add second application to apps array in angular-cli.json.
Add another main entry that shares components with default main.ts file.
Running ng build or serve with --aot flag produces build error.

The log given by the failure.

ERROR in Error: Type AppComponent in app.component.ts is part of the declarations of 2 modules

Desired functionality.

Using different apps with shared components would resolve excluding mocks from production code and add additional features for each app.

Mention any other details that might be useful.

Example repo: https://github.com/veke/ng-multiple-apps
ng build --aot

[filipesilva]

The error ... is part of the declarations of 2 modules error is a AOT error where you cannot have a component being part of the declaration of two NgModules.

This error happens in your setup because you have two apps that share all the TS files. The files that each app contains are defined in src/tsconfig.app.json. You use the same tsconfig for both, and that tsconfig only excludes test.ts and *.spec.ts files.

The solution is to create separate tsconfig for each app, excluding the files specific to other apps.

• rename src/tsconfig.app.json to src/tsconfig.test.json, copy src/tsconfig.test.json to src/tsconfig.test2.json.
• add "main2.ts", "app/app.test.module.ts", to the exclude array of src/tsconfig.test.json
• add "main.ts", "app/app.module.ts", to the exclude array of src/tsconfig.test2.json
• update apps in .angular-cli.json to use these tsconfigs (test uses tsconfig.test.json and test2 uses tsconfig.test2.json.

[veke]

Separated tsconfigs and excluding files was the key. Thank you!

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