Process completed with exit code 1.

The field 'DelegateCommand<T>._action' is never used

Possible null reference argument for parameter 'arg' in 'Task Func<T, Task>.Invoke(T arg)'.

Converting null literal or possible null value to non-nullable type.

Non-nullable field '_canExecute' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable.

Possible null reference assignment.

Possible null reference argument for parameter 'obj' in 'bool Predicate<T>.Invoke(T obj)'.

Non-nullable field '_action' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable.

Nullability of reference types in type of 'event EventHandler AsyncDelegateCommand<T>.CanExecuteChanged' doesn't match implicitly implemented member 'event EventHandler? ICommand.CanExecuteChanged'.

Nullability of reference types in type of parameter 'parameter' of 'bool AsyncDelegateCommand<T>.CanExecute(object parameter)' doesn't match implicitly implemented member 'bool ICommand.CanExecute(object? parameter)' (possibly because of nullability attributes).