detect::Wrapper detector;

if (detectorFileNameSpecified){
  detector = detect::Wrapper(detectorFileName,
             saveImages,
             learnOrDetect,
             verbosity);
}
else {
  detector = detect::Wrapper(saveImages,
             learnOrDetect,
             verbosity);
}

detector.setFind(findAlgNo);
detector.setLD(LDAlgNo);

detector.run();

main.cpp:126:15: error: use of deleted function ‘detect::Wrapper& detect::Wrapper::operator=(detect::Wrapper&&)’
      verbosity);
               ^
In file included from main.cpp:1:0:
wrapper.hpp:14:9: note: ‘detect::Wrapper& detect::Wrapper::operator=(detect::Wrapper&&)’ is implicitly deleted because the default definition would be ill-formed:
   class Wrapper{
         ^~~~~~~

if (detectorFileNameSpecified){
      detect::Wrapper detector(detectorFileName,
                   saveImages,
                   learnOrDetect,
                   verbosity);

      detector.setFind(findAlgNo);
      detector.setLD(LDAlgNo);

      detector.run();
    }
    else {
      detect::Wrapper detector(saveImages,
                   learnOrDetect,
                   verbosity);

      detector.setFind(findAlgNo);
      detector.setLD(LDAlgNo);

      detector.run();
    }