Setup.bat Dedicated Server not working?

Hello! I was in the process of making a dedicated server. I got the source code from GitHub and tried running the file Setup.bat. I did this and got this error:

Checking dependencies (excluding Mac, Android, Linux)…

Updating dependencies: 99% (33911/34200), 5845.1/5846.4 MiB | 0.88 MiB/s…

Failed to download ‘http://cdn.unrealengine.com/dependencies/2636758-e606e606851e4693b1729dd35dcef7ae/345f37ad429b27f1360cf26aa535ef037724f7c4’: The specified path, file name, or both are too long. The fully qualified file name must be less than 260 characters, and the directory name must be less than 248 characters. (PathTooLongException)

Press any key to continue . . .

How do I fix this? Help is appreciated. Thanks!

I also clicked on “Run as Administrator”