Editor crash when creating Assembly Definition file and won't restart

Hey guys.

I'm trying out the Assembly Definition file and maybe I'm doing something wrong, but I can't find out what and my editor is crashing everytime I try to reopen the project.

I'm using NGUI and want to create a DLL out of that, so I'm creating a Assembly Definition file for that under "Assets/NGUI/Scripts/" with name "NGUI.assembly.json" and the content:

Code (csharp):

1. {
2.     "name" : "NGUI",
3.     "references" : []
4. }

Like from the example project. When the editor compiles, it crashes and won't open the project anymore. I've to delete all generated dlls in the "Library/ScriptAssemblies" folder (the generated NGUI.dll and all others too) and delete my Assembly Definition file too.

I'm not sure what the problem is, why the editor crashes, but I can think of namespace problems to cross references of assemblies.

If anyone has a hint what I could be doing wrong, please let me know.

Thanks for help,
Patrick

PS: I submitted a bug report with the latest version 2017.2.b03. Case 931161