参考的帖子如下：
https://blog.csdn.net/kobesdu/article/details/134182765报错信息如下：
09:25:23: Starting /home/yuanzebin/桌面/guo/666 ... /home/yuanzebin/桌面/guo/666: /home/yuanzebin/桌面/guo/../../../../usr/lib/x86_64-linux-gnu/libQt5Core.so.5: version Qt_5.14' not found (required by /home/yuanzebin/桌面/guo/666) /home/yuanzebin/桌面/guo/666: /home/yuanzebin/桌面/guo/../../../../usr/lib/x86_64-linux-gnu/libQt5Core.so.5: version Qt_5.14' not found (required by /home/yuanzebin/Qt5.14.2/5.14.2/gcc_64/lib/libQt5SerialPort.so.5) 09:25:23: /home/yuanzebin/桌面/guo/666 exited with code 1
报错原因如下：
解决办法如下 ： 
上面是原帖子主人的解决办法，确实跟我遇到的情况一样，表示感谢
我只用到了第一段命令，也就是下面的命令，就解决了
应该是我已经在环境变量bashrc中设置了库的路径，就不用再复制了，直接就可以检索，我的环境变量我也粘贴到下面了。
sudo rm /usr/lib/x86_64-linux-gnu/libQt5*
# QT
export PATH="/home/yuanzebin/Qt5.14.2/Tools/QtCreator/bin:/home/ljn/Qt5.14.2/5.14.2/gcc_64/bin:$PATH"
export QT_PLUGIN_PATH="/home/yuanzebin/Qt5.14.2/5.14.2/gcc_64/plugins:$QT_PLUGIN_PATH"
export LD_LIBRARY_PATH="/home/yuanzebin/Qt5.14.2/5.14.2/gcc_64/lib:$LD_LIBRARY_PATH"
export QML2_IMPORT_PATH="/home/yuanzebin/Qt5.14.2/5.14.2/gcc_64/qml:$QML2_IMPORT_PATH"
