Did someone experience massive compiler errors (segfault 11) with new xCode 11?

I installed new xCode 11 and as soon as I compiled I got a lot of segmentation fault:11 errors.

these errors are in at least ten fifteen switf files, and after that I get a

"Command CompileSwift failed with a nonzero exit code"

for all of my swift files...

does anyone have an Idea of what is appening?

did anyone experience something like that?

thank a lot