I have a project with several subprojects, I have ...

# gradle

[zt]

I have a project with several subprojects, I have a common subproject that contains an interface used in each subproject to keep the design consistent, the problem im having is I want to only use this interface in my own code, it should not be used outside of my library source code. I do not want this common module in the publication

interface Library {
    fun version(): Int

    fun configuration(): String

    fun license(): String
}

My implementation class for each subproject all say the same kind of error: Cannot access 'dev.zt64.ffmpegkt.Library' which is a supertype of 'dev.zt64.ffmpegkt.avformat.AVFormat'. Check your module classpath for missing or conflicting dependencies
In the subproject i just have implementation(project(":common"))
Is there something I can do?

[tapchicoma]

Does your Library interface has internal visibility?

[zt]

I can't make it internal cause then the subprojects depending on it can't use it

[tapchicoma]

then some repro is needed. Could be classpath ordering issue or something else. Hard to say.

[Vampire]

Not really. It's most likely happening in a consumer of the project with AVFormat. As Library is a superclass / interface, it is part of the public API and thus has to be api, not implementation, or the compiler chokes with exactly that message.

[Vampire]

At least that is how it looks with Java in that situation