Nullability of reference types in type of parameter 'sender' of 'void MainLayout.LocationChanged(object sender, LocationChangedEventArgs e)' doesn't match the target delegate 'EventHandler<LocationChangedEventArgs>' (possibly because of nullability attributes).

This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread.

Nullability of reference types in type of parameter 'sender' of 'void MainLayout.LocationChanged(object sender, LocationChangedEventArgs e)' doesn't match the target delegate 'EventHandler<LocationChangedEventArgs>' (possibly because of nullability attributes).

This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread.

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

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

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

Unboxing a possibly null value.

Unboxing a possibly null value.