Exception: Module loading estate failed: file estate/security/ir.model.access.csv could not be processed:
 No matching record found for external id 'estate.model_estate_property' in field 'Model'
Missing required value for the field 'Model' (model_id)

I am practicing writing module (after several year break), 

When it is going to Chap4,

I keep getting error message above.

I've tried `estate.model_estate_property`​,`model_estate_property`​`estate.model_estate.property`​`model_estate.property`​`estate_property`​`estate.property`​,

all of them not work.

What's wrong with it?