If this file cannot be found, it’s because you are using the binary version of the engine and not the source. I guess the binaries do not include this file by default but the source does. Follow [this tutorial][1] in order to download and run the source. However, this ultimately means that you’ll have to own a mac or know someone who will let you use their mac to do a remote build. The build tool in the binary version, for whatever reason, can build a blueprint-only project to iOS without requiring you to set up remote connection in the build settings, but the source version does require it.
Unreal build tool is easy to use, but again, a mac machine is required at some point.
Unreal also has this DeltaCopy/RSync feature built into it, but I was unable to get that to work and it’s really difficult to find any troubleshooting info on it.
Downloading Unreal Engine Source Code | Unreal Engine 5.1 Documentation