The issue was with this:
Unhandled exception. System.ArgumentException: Path fragment '"Content/Assets/Assets/Arm/\320\234\320\260\321\202\320\265\321\200\320\270\320\260\320\273.uasset"' contains invalid directory separators.
I had assets with Russian names, but the real issue was with git, apparently until your revision control is updated the error would persist even if you have changed the asset name to ASCII
Found the solution in this thread
You probably can just commit and it will be solved or do what one guy in the thread suggested
just put --global core.quotepath false on your cmd prompt and your game will start building : D