Nullability of reference types in type of parameter 'sender' of 'void UnknownXmlDataThrower.Element(object sender, XmlElementEventArgs e)' doesn't match the target delegate 'XmlElementEventHandler' (possibly because of nullability attributes).

Nullability of reference types in type of parameter 'sender' of 'void UnknownXmlDataThrower.Node(object sender, XmlNodeEventArgs e)' doesn't match the target delegate 'XmlNodeEventHandler' (possibly because of nullability attributes).

Nullability of reference types in type of parameter 'sender' of 'void UnknownXmlDataThrower.Attribute(object sender, XmlAttributeEventArgs e)' doesn't match the target delegate 'XmlAttributeEventHandler' (possibly because of nullability attributes).

Cannot convert null literal to non-nullable reference type.

Cannot convert null literal to non-nullable reference type.

Cannot convert null literal to non-nullable reference type.

Nullability of type of parameter 'value' doesn't match overridden member (possibly because of nullability attributes).

Nullability of type of parameter 'existingValue' doesn't match overridden member (possibly because of nullability attributes).

Nullability in constraints for type parameter 'T' of method 'ScopeRepository.GetRequiredService<T>(IEditorInterface)' doesn't match the constraints for type parameter 'T' of interface method 'IScopeRepository.GetRequiredService<T>(IEditorInterface)'. Consider using an explicit interface implementation instead.