Qt4 无法加载声子后端插件_Qt4_Qt Creator_Phonon

Qt4 无法加载声子后端插件

qt4

Qt4 无法加载声子后端插件,qt4,qt-creator,phonon,Qt4,Qt Creator,Phonon,我运行音乐播放器程序时出现以下错误 WARNING: bool Phonon::FactoryPrivate::createBackend() phonon backend plugin could not be loaded WARNING: bool Phonon::FactoryPrivate::createBackend() phonon backend plugin could not be loaded WARNING: bool Phonon::FactoryPrivate::

我运行音乐播放器程序时出现以下错误

WARNING: bool Phonon::FactoryPrivate::createBackend() phonon backend plugin could not be loaded 
WARNING: bool Phonon::FactoryPrivate::createBackend() phonon backend plugin could not be loaded 
WARNING: bool Phonon::FactoryPrivate::createBackend() phonon backend plugin could not be loaded 
The program has unexpectedly finished.

我正在使用qt creator中的声子库。如果需要，操作系统是ubuntu 12.04。

错误是什么？

您的声子插件似乎丢失了。你确定你安装了phonon gstreamer或其他后端插件吗

对于phonon gstreamer，只需执行“apt install phonon backend gstreamer”