From the screen shot on my little attached display it is obvious what is wrong.
There is no install candidate since the packages has been removed from the new OS
I have tried:
for pip: sudo apt install python3-pip
For QT5: sudo apt-get install qtbase5-dev qtchooser qt5-qmake qtbase5-dev-tools
For libpng: sudo apt-get install libpng-dev
But it creates the same results.
Obviously I could modify the setup.sh, but the backbone needs to support this.
Please help.
Kind regards
Michael
gma
Hi, I’m traveling for the next 3 weeks. I can’t provide help support for this until I get back. Please try to install the packages that are missing.
Have a nice trip 
But as mentioned:
“There is no install candidate since the packages has been removed from the new Raspberry Pi OS”
Hi,
I hope you enjoyed your travel 
Will there be an update for the Raspberry IDE to solve this issue on the new OS version? (bullseye)
It’s on the long list of todos.
No worries 
I know how it is
At least it’s on the list!
Have a nice day!
Same error i got
How to install openmvide for raspberry pi?
Hi, I will start fixing these issues through May through June.