Category "manifest.mf"

Could not find main method from given launch configuration

I've a simple Java project that works when I execute it at Eclipse environment. But when I try to export it to a Runnable Jar, I get the following error: JAR e

"No main manifest attribute" when creating Kotlin jar using IntelliJ IDEA

When creating a jar from my Kotlin code and running it, it says "No main manifest attribute". When looking at the manifest.mf, it has this content: Manifest-Ve