My .pri file called widgets.pri:
SOURCES += \
internal_lib/widgets/sheet_wp.cpp
HEADERS += \
internal_lib/widgets/sheet_wp.h
My .pro file has this include:
include(internal_lib/widgets/widgets.pri)
Everything was working fine but suddenly I get the following error:
error: C1083: Cannot open include file: 'internal_lib/widgets/sheet_wp.h': No such file or directory
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