xLights 2017.33 (Mac version) crashes on launch

[vult2000]

Is there a minimum macOS version required for xLights 2017.33?  On my wife's iMac (which was working fine with 2017.30 I believe, it crashes immediately when launching 2017.33.  In the system.log I see the following:

Dyld Error Message:
 Library not loaded: @rpath/liblog4cpp.5.dylib
 Referenced from: /Volumes/VOLUME/*/xLights.app/Contents/MacOS/xLights
 Reason: no suitable image found.  Did find:
   /usr/local/lib/liblog4cpp.5.dylib: stat() failed with errno=13

[kevinp]

Minimum of 10.7 if I remember correctly.