scala sbt assembly “no main manifest attribute”

Question

I use assembly plugin in sbt to assemble my project. But errors happen when run by \"java -jar xx.jar\" -

\"no main manifest attribute\".

I think it\'s b

Answer 1

I had this issue while testing out Lagom.

To deploy in Lagom you can just access the -impl project and run this:

./sbt "project -impl" dist

This will generate a zip with the executable inside.