Need help with auto_now_add and auto_now fields

Hello Team,

I have a model and I have added two fields to User_Address model creation_date and updation_date. I have pasted the model code at pastebin. Please take a look. 

I am getting following error while running makemigrations command 

You are trying to add a non-nullable field 'creation_date' to user_address witho

ut a default; we can't do that (the database needs something to populate existin

g rows).

Please select a fix:

 1) Provide a one-off default now (will be set on all existing rows)

 2) Quit, and let me add a default in models.py

Select an option: 

Please help...

Regards,

Sarfaraz Ahmed

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