Crash on Blender Launch Using RPR Build (v3.0.23)

[jspeckman]

Receiving this on Blender startup with RPR enabled:

/Applications/Blender.app/Contents/MacOS/Blender
Read prefs: /Users/jason/Library/Application Support/Blender/2.91/config/userpref.blend
found bundled python: /Applications/Blender.app/Contents/Resources/2.91/python
2021-01-28 14:16:40,555 INFO rpr.engine.init [4878210496]:  RPR Core version: 2.1.9 build 0x922a58ba
2021-01-28 14:16:40,566 INFO rpr.engine.init [4878210496]:  Image Filters version 1.6.1 build 0xe4886697
2021-01-28 14:16:40,569 INFO rpr.default [4878210496]:  rprsdk_bin_path: /Users/jason/Library/Application Support/Blender/2.91/scripts/addons/rprblender
dyld: lazy symbol binding failed: Symbol not found: _objc_opt_new
  Referenced from: /Users/jason/Library/Application Support/Blender/2.91/scripts/addons/rprblender/libTahoe64.dylib (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libobjc.A.dylib

dyld: Symbol not found: _objc_opt_new
  Referenced from: /Users/jason/Library/Application Support/Blender/2.91/scripts/addons/rprblender/libTahoe64.dylib (which was built for Mac OS X 10.15)
  Expected in: /usr/lib/libobjc.A.dylib

Killed: 9

Running MacOS Mojave 10.14.6
Blender 2.91

[bsavery]

We're on it. We need to specify a min OSX version at compile

[bsavery]

BTW if the workaround wasn't obvious from the error message, upgrading to Catalina would fix this.

[jspeckman]

Thanks, but upgrading to Catalina is not currently an option.

[bsavery]

Unfortunately I think we are not going to add mojave support at this point. Sorry