public MainWindowViewModel() { DeviceName = "Not connected"; Parameters = new ObservableCollection <Parameter>(); Logcat = new ObservableCollection <string>(); ConnectCommand = new AsyncCommand(async() => await Connect(), CancellationToken.None); InstallCommand = new AsyncCommand(async() => await InstallApp(), CancellationToken.None); try { _adb = Adb.New("..\\..\\..\\adb\\adb.exe"); } catch (AdbException ex) { MessageBox.Show(ex.Message); Environment.Exit(1); } }