well, I did nothing ...
I was compiling this morning, then a break for lunch, come back and here it is the error.
All my old projects also no longer compile, not only this I'm working on today ... I don't know.
The only event I can report is that I have enabled the Ireleaselogger library (I often enable and disable it) and then I saw the error.
So I was first thinking to a problem related to that, disabled the library but the error is still here.
I can't work. All projects suddenly dead.
What can be happened ?