NullReferenceException with ScriptSynchronizationActions

paulh

My MSBuild task is throwing a NullReferenceException and I can't figure out why...

I'm writing out the messages from the Work object which works fine, but when I do

// Retrieve the list of actions to perform to synchronize the database against the scripts folder
            ScriptSynchronizationActions scriptActions = work.ScriptSynchronizationActions;

            // Display the files that will be modified during the synchronization
            this.Log.LogMessage(MessageImportance.High, "Script files that will be modified:");
            foreach (ScriptSynchronizationAction action in scriptActions.SynchronizationActions.Values)
            {
            ...
             }

I get an exception which implies that scriptActions.SynchronizationActions is null.

Any ideas?