Xcode freezes at compiling source files

I collected a game in a unit on a poppy. She quit without errors. In xCode itself everything was fine too. When building xCode, it hangs somewhere on the 127th file. It hangs tightly, and even the whole computer that you have to reboot. before this has never happened. When you first start it usually indexes files. But now the indexing has stopped. Now it hangs at stage 216 of 216 and nothing happens further. What could be the problem?