Rhino 6 WIP doesn't start (MacOS Mojave)

I’m so excited to use this WIP. I just have to figure out how to get it to start :laughing:
MacBook Pro 13" w touchbar
MacOS Mojave public beta 9

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Beta MacOS and Rhino Mac WIP. Looking for double damage modifier there? :wink:

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the Mac Serengeti page isn’t accessible ?? say private or doesn’t exist ?

Last login: Fri Aug 31 01:50:44 on console
uBook:~ uli$ /Applications/RhinoWIP.app/Contents/MacOS/Rhinoceros ; exit;
2018-08-31 01:53:30.489 Rhinoceros[886:11718] Unable to find class: MRApplication, exiting
Saving session...
...copying shared history...
...saving history...truncating history files...
Deleting expired sessions...4 completed.

[Prozess beendet]

@marlin is able to repeat this problem on mojave. He is still investigating

I created a bug report for this at

I reported the same issue here:

Thought I would just follow up, I just updated to Mojave Beta 10 today and it still doesn’t start.

Marlin is working on it today.
He thinks it’s not going to be too complicated to fix.


It ought to launch in macOS Mojave in the latest RhinoWIP. Please give it a try and let us know. Thanks again for reporting!

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A post was merged into an existing topic: Bake from Grasshopper doesn’t do anything WIP6