I updated windows recently.I also updated xamarin studio 6.1.1 and now not able to initialize the device. Everything was working perfectly before updates. I keep getting error: failed to initialize device. VBoxManage command failed.See log for further details. As I read on other threads, I was trying to open virtual boxmanager window and delete device. I was not able to open virtual boxmanager window. so uninstalled virtual box, installed new version. then uninstalled xap and reinstalled. still getting error. Which log should I check for details.? checked VT-x in the BIOS. it is enabed. Not able to open virtual boxmanager. Also tried diabling and enabling virtualbox NDIS6 bridged networking driver.
Xamarin Android Player has been deprecated since June 8, 2016.
Ref: https://developer.xamarin.com/guides/android/deployment,_testing,_and_metrics/debug-on-emulator/
Note that the Xamarin Android Player has been deprecated. For more information, see the announcement in this blog post.
Ref: https://blog.xamarin.com/live-from-dotnetconf-cycle-7-xamarin-studio-6-and-more/
来源：https://stackoverflow.com/questions/39922719/xap-failed-to-initialize-device-and-virtualbox-manager-does-not-open