Ue4 C++ -WaitMutex - FromMsBulid- Command terminated (code : 3)

263734-

This is the first time that I wrote the code of the Cpp and suddenly the editor did a debug to the visual studio because it was not working. Does anyone know about this error?

Severity Code Description Project File Line Non-Display Error Status
Error MSB3073 ""D:\Epic Games\UE_4.19\Build\BatchFiles\Build.bat" Real_Project Win64 DebugGame "C:\Users\Kwon OhuYeon\Desktop_Real_Project\Project\Project_Project_Project_Project.The" -WaitMutex -FromMsBuild" command has been terminated (code: 3).	Real_Project C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\IDE\VCTargets\Microsoft.MakeFile.Targets 44

PS.The error may not be perfect because the translator has been transferred from Korean to English.