@HISEnberg So Moonbase JUCE module requires JUCE8 indeed. Hise isnt stable when being compiled, or when compiling plugins, on JUCE8. So yeah its not working atm. Christoph noted that this is because he did some funky stuff for the MCP integration.
BUT you can work around that by compiling hise on JUCE6, then exporting a plugin. It will fail but it will create a .jucer file and you can pick that up with JUCE8. At least thats my workflow. You could probably script the whole thing. It requires some other steps as well as modifying some Hise source.
TBH if you dont need it right now (as stated, for me it was a neccesary step) I would simply wait for Christoph to integrate it.
@Christoph-Hart 🎉 great! I feel like it could really benefit the eco system surrounding Hise.