Possible null reference assignment.

Possible null reference assignment.

Possible null reference assignment.

Argument of type 'List<Phase?>' cannot be used for parameter 'entities' of type 'IEnumerable<Phase>' in 'void DbSet<Phase>.AddRange(IEnumerable<Phase> entities)' due to differences in the nullability of reference types.

Argument of type 'List<AssessmentType?>' cannot be used for parameter 'entities' of type 'IEnumerable<AssessmentType>' in 'void DbSet<AssessmentType>.AddRange(IEnumerable<AssessmentType> entities)' due to differences in the nullability of reference types.

Non-nullable field 'AllAssessments' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

Dereference of a possibly null reference.

Dereference of a possibly null reference.

Dereference of a possibly null reference.