incompatible qt lib when running packettracer

I am trying to install packettracer on ubuntu 18.04,When I click on the Icon nothing was happening so I ran from shell and gave me ./PacketTracer7: error while loading shared libraries: libQt5Multimedia.so.5: cannot open shared object file: No such file or directory

so I copied the libraries manually from pt to my /usr/lib , giving this error Fatal: Cannot mix incompatible Qt library (version 0x50501) with this library (version 0x50905) Aborted (core dumped) I read on some questions on different websites that re installing Ubuntu is the only solution, is there another way to fix ?

1 Answer

You should revert the handmade changes by removing libraries which you have copied to /usr/lib/x86_64-linux-gnu:

sudo rm /usr/lib/x86_64-linux-gnu/libQt5Multimedia.so.5
sudo rm /usr/lib/x86_64-linux-gnu/libQt5Xml.so
sudo rm /usr/lib/x86_64-linux-gnu/libQt5Xml.so.5
sudo rm /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
sudo rm /usr/lib/x86_64-linux-gnu/libQt5ScriptTools.so.5

and so on. And please do not do such bad things again. You can break your system completely.

Instead you have to install necessary libraries from packages:

sudo apt-get install libqt5multimedia5 libqt5xml5 libqt5script5 libqt5scripttools5

and then proceed with running PacketTracer.