It's not 100% related to Compose but still - proba...

# compose

[Zhelyazko Atanasov]

It's not 100% related to Compose but still - probably a good place to ask. I started implementing our internal design system in Compose and I published it to Maven Local. Then I wanted to use it in another project, but I'm not able to call any "global" functions - e.g. I have a file called OneButton with a single method in it (no classes or objects):

@Composable
fun OneButton(
    modifier: Modifier = Modifier
...

If I try to call it from my other project, Android Studio does not recognize the function.

Then I decided to experiment and created a dummy Kotlin class with a single @Composable method in it. Published the .aar to Maven Local and used it in the other project. I created an instance of the dummy class and successfully called the @Composable function. What am I missing - my setup is more or less the same as in Accompanist (I'm not using Metalava and/or API file), I'm using the same Gradle plugin for publishing the artefacts... Any idea what may be wrong?

[louiscad]

Do you exclude any files from packagingOptions in the library build.gradle(.kts) file?

[Zhelyazko Atanasov]

Hmm haven't thought about that. Quite a few, all part of META-INF directory:

packagingOptions {
        resources.excludes.add("META-INF/DEPENDENCIES")
        resources.excludes.add("META-INF/LICENSE")
        resources.excludes.add("META-INF/LICENSE.txt")
        resources.excludes.add("META-INF/license.txt")
        resources.excludes.add("META-INF/NOTICE")
        resources.excludes.add("META-INF/NOTICE.txt")
        resources.excludes.add("META-INF/notice.txt")
        resources.excludes.add("META-INF/AL2.0")
        resources.excludes.add("META-INF/ASL2.0")
        resources.excludes.add("META-INF/LGPL2.1")
        resources.excludes.add("META-INF/*.kotlin_module")
    }

[louiscad]

The last one should be applied only to apps.

[louiscad]

This is the root cause of your issue.

[louiscad]

Without that, you'll see it like a compiled java library.

[Zhelyazko Atanasov]

Yep.. it's working now. Thanks a lot for the help! I've added those excludes at some point as I was having troubles (the usual error message about them). I'll read more about *.kotlin_module files 🙂

[Zhelyazko Atanasov]

If someone finds this post - this SO answer provides info about *.kotlin_module files and their purpose