I have a build with a single Perforce VCS root attached. I set VCS checkout mode to "Do not checkout files automatically". I would like to run "p4 -Zproxyload sync //..." against the client in one of the build steps, but it seems like this variable is not set, so the command fails with this message:
Client 'machinename' unknown - use 'client' command to create it.
I tried using a checkout rule "-:.", but it still did not work. How can I make it work?