ID:332016 Argument: -master_clock must contain exactly one valid clock.

CAUSE: The -master_clock collection that you specified might be empty, or it might contain more than one clock. The -master_clock collection must contain exactly one valid clock.

ACTION: Specify a collection with one valid clock. If the clock you want to use does not yet exist, simply type the clock name without using the get_clocks command to create a collection. The collection is initialized internally after the desired master clock is created.