Problem started after update macOS to Big Sur
First of all, I can't update Xcode via Appstore, so I've downloaded from official site 12.4, and it can't open any project or swift file.
What I've tried:
-remove all devices
-change wifi to ethernet
-remove Derived Data and reboot
I've downloaded Xcode 12.2(which was previos for me and worked fine) and install it, still no luck. It just spin and spin, and finally not responding. I am really stuck with this, please help me solve this.