fedorov/MultiVolumeExplorer — comment on commit cd8c08026faf1ae38adac50632bb2832de44c946
File: qSlicerMultiVolumeExplorerModule.cxx line 110
By finetjul:

because you are not using qSlicerMultiVolumeExplorerModuleWidget, you should probably delete the widget qSlicerMultiVolumeExplorerModuleWidget.h/cxx files (and .ui file).