Remote Build SSH generation cannot locate file or directory from "rsync" step

I am having trouble setting up an SSH key for the remote build process for IOS. The process errors at the rsync stage, unable to find the key generated. The remote mac is located. Anyone any ideas?

One thing maybe considering is that the project directory does not contain any spaces in names. I am also struggling currently with remote build but I‘ve set it up and ist seems to work. Also see if there is already some key in that directory and delete it. What I‘m setting up is running ue4 while also running a virtual mac on VW ware on the same windows pc. They indeed connect. This may help if you always need to borrow your friend‘s mac(but you need a beefy pc)