未定义的QMediaPlayer和QVideoWidget参考

Question

Even though I declared QT += multimedia multimediawidgets in my .pro file I am getting error Undefined reference to QMediaPlayer and QVideoWidget constructors, destructors and methods , I included path in my .pro file to those files in /usr/include/QtMultimetiaKit like this INCLUDEPATH += /usr/include/QtMultimediaKit/ , but errors are the same, what else to try?

I am running Qt 4.8.6 and Qt Creator 3.5.1 on Ubuntu 14.04.3.

Answer 1

You need to add to the .pro file:

CONFIG += mobility
MOBILITY += multimedia