Qt Build Project Error: No rule to make target ‘TarWidget.cpp’, neede d by ‘TarWidget.o’. Stop.

Because I put tarwidget.cpp in the view folder, open the .Pro file:

SOURCES += TarWidget.cpp\


There are two. Delete the upper one.

SOURCES += View/TarWidgdet.cpp\

It also needs to be deleted under headers.

Finally, just execute qmake.

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