In using Live Build today based on the latest dev, I am getting an error (shown below). I found the same situation when trying Live Build with @daniel 's plug (https://github.com/ffAudio/Frequalizer). It is linked to juice_StdFunctionCompat.h (lines 116 and 150).
The error message appears to be pretty straight forward, but I must be missing something - I don’t see any unique_ptr in the h or cpp…
error: /Users/…/JuceLibraryCode/include_juce_audio_processors.mm: call to implicitly-deleted copy constructor of ‘std::unique_ptr’
BTW - This happens with a vanilla plugin project as well.