xx@xxxxx MacOS % ./Qt\ Design\ Studio 
dyld[84967]: Library not loaded: '@rpath/QtConcurrent.framework/Versions/A/QtConcurrent'
  Referenced from: '/Users/qt/RTA/QtDesignStudio_3.9.0/Qt Design Studio.app/Contents/MacOS/Qt Design Studio'
  Reason: tried: '/Users/qt/RTA/QtDesignStudio_3.9.0/Qt Design Studio.app/Contents/MacOS/../Frameworks/QtConcurrent.framework/Versions/A/QtConcurrent' (no such file), '/Users/qt/RTA/QtDesignStudio_3.9.0/Qt Design Studio.app/Contents/MacOS/../Frameworks/QtConcurrent.framework/Versions/A/QtConcurrent' (no such file), '/Library/Frameworks/QtConcurrent.framework/Versions/A/QtConcurrent' (no such file), '/System/Library/Frameworks/QtConcurrent.framework/Versions/A/QtConcurrent' (no such file)
zsh: abort      ./Qt\ Design\ Studio