解决方法：
终端命令：sudo apt-get install libqt4-dev
sudo apt-get install libgstreamer0.10-dev
sudo apt-get install libgstreamer-plugins-base0.10-dev
解决方案：
1)wget http://ftp.ca.debian.org/debian/pool/main/g/gstreamer0.10/libgstreamer0.10-0_0.10.36-1.5_amd64.deb
2)wget http://ftp.ca.debian.org/debian/pool/main/g/gst-plugins-base0.10/libgstreamer-plugins-base0.10-0_0.10.36-2_amd64.deb
3)sudo dpkg -i libgstreamer0.10-0_0.10.36-1.5_amd64.deb
4)sudo dpkg -i libgstreamer-plugins-base0.10-0_0.10.36-2_amd64.deb
QtCreator/lib/qtcreator/plugins/libHelp.so: 无法加载库
原文：https://www.cnblogs.com/xiangtingshen/p/12091744.html