Hello, I'm newbie if it's going about Kotlin. I've created succuessfuly project that I'm able to compile and run. Anyway I wanted to create jar file via IDEA's Artifiacts. Unfortunately I can't get it to work - i'm getting "Error: Could not find or load main class updatezipcreator.jar" while trying to run file via "java updatezipcreator.jar" command.
Here is my whole project: