It happened to me after some Ubuntu updates i think.
I had found the problem and the solution:
/usr/share/qt4/plugins/designer/libqwebview.so is missing.
Just find it and put it there and it will work.
It happened to me after some Ubuntu updates i think.
I had found the problem and the solution:
/usr/share/ qt4/plugins/ designer/ libqwebview. so is missing.
Just find it and put it there and it will work.