qt4 - phonon 后端插件无法加载

Question

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.

我在 qt creator 中使用声子库。如果需要，操作系统是 ubuntu 12.04。错误是什么？

Answer 1

看来您的声子插件丢失了。你确定你安装了 phonon-gstreamer 或其他一些后端插件吗？

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