Felix Schnabel

Hi, today I faced the same issue. My minimal build.gradle looks like this: ```groovy plugins { id 'java' id 'edu.sc.seis.launch4j' version '2.4.6' } dependencies { implementation 'org.glassfish.jaxb:jaxb-runtime:3.0.2' implementation 'com.sun.xml.bind:jaxb-xjc:3.0.2' }...

If you could help me with some guidance where the error could be solved, I would like to work on this issue 😄

So I've created a test with my code snippet and it worked. It's because this repo is using Gradle 6.x and I was using Gradle 7.x. See also here: https://docs.gradle.org/current/userguide/upgrading_version_6.html#duplicates-strategy

Is it currently possible to let a test run with a different Gradle version than specified at the root project?

I thought, that maybe something like this would work: ```groovy launch4j{ mainClassName = 'com.test.app.Main' copyConfigurable = copySpec { duplicatesStrategy = DuplicatesStrategy.INCLUDE } } ``` But now I'm getting the error...

I've created a draft PR (#123) that fixes the issue. It just hardcodes it to exclude any duplicate entries. Maybe we should introduce a new property so the user can...

Could someone please approve the workflow?

I would like to work on this issue. Anything else that should be changed than the two buttons (Crafting/Processing mode and Recipe/Substitution mode)?

I've removed the checks and created a PR for it.

I think this issue can be closed, since the PR was already merged