Android Library Support - Build Issue

We have created an autobuilder which has been working fine producing APKs for us. We recently added Facebook support, and the build continues to execute cleanly. However, when building an APK locally additional Facebook components get included in the APK, but when building remotely they do not. The repository state is the same on both machines, and both machines have Unity Android Pro licences. The only difference I can find in the logs is this:

DisplayProgressbar: Android Library Support is missing on the Autobuilder

Does anyone know how to enable this?

It appears having a “.” in the name of a directory on the build path results in failure of the android-libraries to be correctly found and added to the StagingArea.

Moving our repository on the Autobuilder from ~/.jenkins/workspace/game_project to ~/game_project fixed the issue.