Unreal engine 4.5 bug

HI PPL IM new to unreal engine and I wanted to open a ready file to learn but it says A project’s path must not be longer than 130 characters. does any one know how I can fix it

That means you’re trying to save to a location where you have too many folders which is making the location of the project a long string of text. You need to put it somewhere that would be shorter, like D:\UnrealProjects\