Angular-cli: "Please add a @NgModule annotation" error in 1.0.4. Works in 1.0.3.

[mderoche]

Bug Report or Feature Request (mark with an x)

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

Versions.

@angular/cli: 1.0.4
node: 6.10.0
os: darwin x64
@angular/common: 4.1.3
@angular/compiler: 4.1.3
@angular/core: 4.1.3
@angular/forms: 4.1.3
@angular/http: 4.1.3
@angular/platform-browser: 4.1.3
@angular/platform-browser-dynamic: 4.1.3
@angular/router: 4.1.3
@angular/cli: 1.0.4
@angular/compiler-cli: 4.1.3

Repro steps.

1. Clone this sample module, which allegedly uses the current recommended Angular package format: https://github.com/jasonaden/simple-ui-lib
2. Create new test app with: ng new testApp
3. Build simple-ui-lib with sh build.sh
4. npm link simple-ui-lib's /dist
5. Go to the testApp and npm link simple-ui-lib
6. Import the module in testApp: import { BoxModule } from 'simple-ui-lib';
7. Add BoxModule to the imports in testApp's app module

The log given by the failure.

compiler.es5.js:1540 Uncaught Error: Unexpected value 'BoxModule' imported by the module 'AppModule'. Please add a @NgModule annotation.
at syntaxError (http://localhost:4200/vendor.bundle.js:29714:34)
at http://localhost:4200/vendor.bundle.js:42668:44
at Array.forEach (native)
at CompileMetadataResolver.getNgModuleMetadata (http://localhost:4200/vendor.bundle.js:42651:49)
at JitCompiler._loadModules (http://localhost:4200/vendor.bundle.js:53804:66)
at JitCompiler._compileModuleAndComponents (http://localhost:4200/vendor.bundle.js:53763:52)
at JitCompiler.compileModuleAsync (http://localhost:4200/vendor.bundle.js:53725:23)
at PlatformRef_._bootstrapModuleWithZone (http://localhost:4200/vendor.bundle.js:5731:25)
at PlatformRef_.bootstrapModule (http://localhost:4200/vendor.bundle.js:5717:21)
at Object.116 (http://localhost:4200/main.bundle.js:117:124)

Desired functionality.

I'd assume that since this error spawns from both the recommended package setup, and a default new CLI application, that it should run with no errors right out of the box.

Mention any other details that might be useful.

This works in 1.0.3, but breaks in 1.0.4. (Broken in 1.1.0-rc.0 as well.) Not sure if this is actually a bug, or some change in how Angular CLI expects outside modules to be built.

[clydin]

For details on using a linked library, please see this new developer story: https://github.com/angular/angular-cli/blob/master/docs/documentation/stories/linked-library.md

[filipesilva]

Closing as answered by @clydin, guidance can be found at that link.

[ISimplifyComplexity]

The link now gives a 404!

[filipesilva]

The link for 1.x can still be found at https://github.com/angular/angular-cli/wiki/1-x-stories-linked-library.

For 6.x we added the library creation functionality, and have a new story at https://github.com/angular/angular-cli/wiki/stories-create-library.

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