Hi,

I have just upgraded my Qt 4 into Qt 5 (version 5.8). I then had to upgrade my version of qwt and tried to install qwt 6.1.3 but I keep having the same error message:

In file included from qwt_designer_plugin.cpp:23:
In file included from ./qwt_designer_plugin.h:13:
/Applications/QT5/5.8/clang_64/lib/QtDesigner.framework/Headers/QDesignerCustomWidgetInterface:4:4: warning: Header
<QtDesigner/QDesignerCustomWidgetInterface> is deprecated. Please include <QtUiPlugin/QDesignerCustomWidgetInterface> instead. [-W#warnings]
# warning Header <QtDesigner/QDesignerCustomWidgetInterface> is deprecated. Please include <QtUiPlugin/QDesignerCustomWidgetInterface> instead.
^
/Applications/QT5/5.8/clang_64/lib/QtDesigner.framework/Headers/QDesignerCustomWidgetInterface:8:10: fatal error:
'QtUiPlugin/QDesignerCustomWidgetInterface' file not found
#include <QtUiPlugin/QDesignerCustomWidgetInterface>


Has anyone got any idea how to fix this?
Thanks in advance,
Nick