Process completed with exit code 1.

Cannot convert null literal to non-nullable reference type.

Cannot convert null literal to non-nullable reference type.

Possible null reference return.

Possible null reference return.

Dereference of a possibly null reference.

Dereference of a possibly null reference.

Dereference of a possibly null reference.

Possible null reference argument for parameter 'model' in 'EditContext.EditContext(object model)'.

Nullability of reference types in type of parameter 'sender' of 'void Create.HandleFormChange(object sender, FieldChangedEventArgs args)' doesn't match the target delegate 'EventHandler<FieldChangedEventArgs>' (possibly because of nullability attributes).