Just got it to work! THANK YOU! The problem is that cygwin doesn’t accept spaces. To make it work, every directory that has a space in it’s name i had to put a “****” for example : “C:/UE4/My Documents/Folder” Would be like this instead “C:/UE4/My\ Documents/Folder” So just add in that Backslash for every directory and file name that has Spaces and you’re good to go! And that’s what got it building for me! Thank you!