most likely caused by running the app from the gutter play button
@orangy you are right, I used the "play" button to run the app which causes the error above.
Executing the "compose desktop/run" task directly works.
The "play" button also works if I remove the
.
(But I cannot do that because my goal is to reevaluate Gradle included builds with multiplatform projects, which feature should theoretically work in Kotlin 1.8.20 but needs this setting.)