Does XCode crash ? If so, send the report directly.
Which XCode version ?
iOS app ?
Which iOS version on device ?
the simulator does not star at all
Is the simulator already on screen ?
Have you checked you have not memory leaks so huge that you in fact crash the simulator ? If so, you create your own frustration.
If you have tested this and problem still occurs, yes, there is a solution: file a bug report.
The simulator is already on screen.... first time run, no problem, it happens after several runs. I have searched for a solution to this problem and can not find a definitive solution.
Did you check for memory leaks ?
Look at Debug navigator (7th icon at top left panel): wdo you see memory used by app growing ?
You may also run Activity Monitor and see how much memory used and available.
8 GB is really limited memory now with XCode 11.
Does the same problem occur on device or only on simulator ?
Which version Xcode on what macOS?
How much ram on your mac? How much free space on your SSD?
499.96 GB -> Available 191.57 GB
My opinion is that just 8GB ram is always going to be a problem. If you can, try to add more so you at least have 16GB ram, instead.
I think until you do, restarting your mac is your best option, sorry.