1、问题描述
在OrinNX+Ubuntu20.04上，使用命令安装qtmultimedia5-dev时报错
sudo apt install qtmultimedia5-devThe following packages have unmet dependencies:
qtmultimedia5-dev : Depends: libpulse-dev but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
2、原因分析
qtmultimedia5-dev 依赖 libpulse-dev，但是安装 libpulse-dev 失败，
安装 libpulse-dev 时，又报错子依赖：libpulse-mainloop-glib0 安装失败
最终原因是基础包 libpulse0 已安装高版本，导致其它包安装失败。
可以尝试安装 libpulse-mainloop-glib0 查看安装包版本
sudo apt libpulse-mainloop-glib0
The following packages have unmet dependencies:
libpulse-dev : Depends: libpulse0 (= 1:13.99.1-1ubuntu3.8) but 1:13.99.1
