It is possible for a state form to be ready for efile before the print version of the form is finalized and available (or vice versa). What specific CA form are you referring to that has that notice on it?
You can check availability of California forms with this table.
State Forms Availability Table:
According to the State Forms Availability table I provided above, I see that the California 540 (Resident tax return) and the California 540NR (Non-resident or part-year resident return) will not be available for printing purposes until 1/30/2020.
So if that explains your situation, you'll have to wait until 1/30/2020 and sometime during that day it may update with an available CA 540 or CA540NR form for printing.
You can also check your other forms in that availability table in case you have an additional form not yet available.