UE4 crash when i compile using VS 2013 community editon on Windows 7 64 bit

when i compile codes with 0 failed,1 successful…UE4 crashes
it doesnt happens all the time,but once it crashes i cannot reopen the project
why is that ?

What was the error message that unreal displayed???

– d0x

i already send the error report to EPIC…alot of texts…lol xD
but when i did it again from scratch,it worked