So my nightmare: • added a library that needs kotlinx-coroutines 1.4, was previously on 1.3. IntelliJ can no longer run the debugger because "Failed to find Premain-Class manifest attribute on kotlinx-coroutines-1.4.2" • "what the hell, I'm on java 13 with some half baked libs, time for an update", so I move to kotlin 1.5, kotlinx-coroutines 1.5, Java 17, | ◦ this blows up for many reasons. I work though most problems. ◦ im using zulu 17, a commuinty build of openJDK that bundles javafx as a jmod. IntelliJ's own highlighting understands this, and my ant build scripts understand it, but intelliJ's build button does not. what do I need to do to get intelliJ to build a java+kotlin project where javafx is from a jmod in the SDK? I've got an old cyclic dependency in my project that I'm sure isn't helping, so I've reverted all my work to sort that out first. any help is much appreciated, this is really really not fun.

Running the dependencies Gradle task for the affected module might bring some helpful info.