Oracle Message ORA-15151 - missing or invalid version number for rolling migration

ERRORmissing or invalid version number for rolling migration
CAUSEThe command did not sepcify a valid version number.
ACTIONCorrect the version number in the command. It should be of the form v#.#.#.#.# or other forms with fewer numbers delimited by a period. The version number must be different from the current software version of the instance.