Centos-7安装Qt启动问题

1. 步骤：
   1）Centos7虚拟机安装好后，sftp上传qt-opensource-linux-x64-5.12.12.run到root目录下，
   chmod -R 777 qt-opensource-linux-x64-5.12.12.run
   2）鼠标点击qt-opensource-linux-x64-5.12.12.run开始安装，选择必要组件后安装成功。
2. 启动
   1）鼠标点击QtCreator无反应。
   2）进入命令行执行，错误信息如下：
   ./qtcreator
   qt.qpa.plugin: Could not load the Qt platform plugin “xcb” in “” even though it was found.
   This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.
   Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, xcb.
   Aborted (core dumped)

2 问题解决过程。
1）vi ~/.bashrc
export QT_DEBUG_PLUGINS=1
2）cd /opt/Qt5.12.12/Tools/QtCreator/lib/Qt/plugins/platforms
ldd libqxcb.so

libxcb-icccm.so.4 => not found
libxcb-render-util.so.0 => not found

3. 解决
   yum install xcb-util-wm
   yum install xcb-util-renderutil