[PyQt] Ubuntu Taskbar icon shows title as "Unknown" while hover

[davidmuni]

Thanks for your reply guys. my actual problem is I am using FBS for an executable generation.
https://github.com/mherrmann/fbs-tutorial
In ubuntu, while I use FBS, it generates the APP. APP working fine. But App Icon in left sidebar not showing the title. it shows "unknown" while mouse over my app icon in ubuntu left bar