Process completed with exit code 1.

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

Nullability of reference types in type of parameter 'parameter' of 'void RelayCommand.Execute(object parameter)' doesn't match implicitly implemented member 'void ICommand.Execute(object? parameter)' (possibly because of nullability attributes).

Nullability of reference types in type of 'event EventHandler RelayCommand.CanExecuteChanged' doesn't match implicitly implemented member 'event EventHandler? ICommand.CanExecuteChanged'.

Cannot convert null literal to non-nullable reference type.

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

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

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

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

Possible null reference return.