Hi, What version of Kentico are you using? I would recommend checking the documentation on what can be synchronized.
It looks like you are using pre-compiled project on production which means the deployment mode is on. I am assuming it since the system is looking for the virtual file on disk and cannot find it. And if you check the staging docs, it says that in this setup the staging is not fully supported
"Object code stored and edited in physical files via deployment mode or source control mode
- On source servers, staging tasks are generated only if you edit code in the Kentico UI or after you synchronize changes from files into the database.
- On target servers, staging tasks do not update object code if deployment or source control mode is enabled."
So, this means if you are using pre-compiled project on the target, that you need to save the virtual files to disk on the source instance and perform the pre-compilation/publishing again and move the project files to the production server again.
And the same applies for transformations as those are virtual objects too.