I'm working on a program that uses ImageGrab in Pillow. I am getting the error mentioned in the title. I notice in the documentation that it says the generic pip install Pillow doesn't come with libxcb. I tried installing libxcb with pip install libxcb, but it apparently doesn't exist as that. I tried looking around on Google for it, but none of it helped.
If anybody could point me to the specific library that I need to install and commands to run, I'd appreciate it!
I should mention that the python that I'm running is the Windows Store v3.8. I am trying to keep a minimal amount on my SSD and didn't want a large overhead of stuff I won't use.
I had the same error while I was using the Ubuntu terminal for Windows 10. Figured that was the issue because it sometimes has weird errors when its executing more os orientated stuff. 
If anyone else has this error and they're using the Ubuntu terminal, try running it with the Windows CMD.
"Pillow was built without XCB support"