cannot convert from 'System.Guid?' to 'System.Guid'

Question

Does anyone know how to deal with this error?

cannot convert from \'System.Guid?\' to \'System.Guid\'

Answer 1

cannot convert from 'System.Guid?' to 'System.Guid'

you are trying to save type System.Guid? to a type system.Guid inside your model you can edit System.Guid? to System.Guid by removing the question mark.

or RCIX answer above