I encountered the following error when attempting to run Cura2 from source:
cura.CrashHandler.show : An uncaught exception has occurred!
cura.CrashHandler.show : Traceback (most recent call last):
cura.CrashHandler.show : File "/home/aleph/Cura2/user-interface/cura_app.py", line 52, in <module>
cura.CrashHandler.show : import Arcus #@UnusedImport
cura.CrashHandler.show : ImportError: dynamic module does not define init function (PyInit_Arcus)
Not sure if this is an actual bug, something I did wrong when building it, or a missing dependency on my machine. I am mentioning it because I found an upstream Ultimater ticket regarding this, so it's not just me that has run into the problem:
Maybe something to keep an eye on. Commenting out that line (as indicated on the ticket) is the workaround I am applying for now.