Cant build My project And I dont know why

I need help. when I try to build the project after I created The door opener function it show me two errors that I cant find any solutions for them on the intent. please help me !

Error System.UnauthorizedAccessException: Access to the path ‘F:\UnrealProjects\BuildingEscape\MyProject\Binaries\Win64\UE4Editor-MyProject-4948.dll’ is denied.

and Error MSB3073 The command ““F:\Program Files (x86)\Epic Games\4.12\Engine\Build\BatchFiles\Clean.bat” MyProjectEditor Win64 Development “F:\UnrealProjects\BuildingEscape\MyProject\MyProject.uproject” -waitmutex” exited with code -1.

Scroll down to the green bit, Someone pointed it out to me when i had the same issue. Hope this helps

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I didn’t work I still get this error :cry: