No main class detected for submodules without main class

[hellhoundmipt]

I have a project with a root module (obviously has a main class, object Main for example) that depends on multiple other modules that do not have main classes as they are used as libs. In build.sbt I specify mainClass in reStart := Some("Main"). When I start an app with sbt ~reStart, it works fine and restarts when source code in any of the modules changes, but it throws java.lang.RuntimeException: No main class detected for all the subprojects. Not something severe as it does everything it is supposed to do, but errors in logs are annoying. Any fix for this?

[jonathonherbert]

Does disabling Revolver explicitly on each project that does not require it help? (https://github.com/spray/sbt-revolver/issues/66)

[jrudolph]

I'd suggest to move to the submodule first that has the main class, e.g.

sbt "project <module>" ~reStart

or using

sbt "~<module>/reStart"