Glad it's not just me having problems. Will try a reinstall...

Thanks...

Yes, selecting 64 Bit Intel for both Release and Debug in JUCE, then doing a 'Save Project and Open In IDE'. From Xcode, selecting 'Build For Profiling'. It gets all the way to the end before giving that error. Have tried on both my desktop and laptop with the same problem.

Ah, actually I had not unchecked Mac 32bit support. What I had been doing was opening the Autogenterated Juce project when the build failed, checking 64 bit there, then saving and opening in Xcode... which would give me the error passed on. Is there somewhere else I should be selecting x64 build only?

Unchecking that 32 bit box seems to get it to compile in terminal but I still end up with:

▸ Check Dependencies
** BUILD FAILED **

The following build commands failed:
Rez build/Ned\ HISE.build/Release/Ned\ HISE\ -\ AU.build/ResourceManagerResources/Objects/include_juce_audio_plugin_client_AU.rsrc /Users/music/HISE\ Projects/Binaries/JuceLibraryCode/include_juce_audio_plugin_client_AU.r
(1 failure)
Compiling finished. Cleaning up...

I can almost guarantee that I've failed to do something painfully obvious - I just can't figure out what.

Thanks for the help!

Thanks so much for the swift reply! Attaching a screenshot from Xcode.

Newbie to all of this... I've managed to build a simple VST plugin but every time I try and export for AU I get this error: Command /Applications/Xcode.app/Contents/Developer/usr/bin/Rez failed with exit code 3

Took me a while to get to this point, but now I can't seem to get beyond it. Any nudges in the the right direction would be greatly appreciated.

Thanks!