I was happy with Xamarin Studio trial license running on Windows, did some development on top of BouncingGame example. It worked just perfect and then I decided to purchase Indie license. I wasn't smart enough to understand how my license is going to be installed and used after the purchase, so decided simply to reinstall Xamarin Studio. And I did. However, during installation process I got error (which I found kind of common by searching in Internet) and it was suggested by installer to install necessary tools (Xamarin Studio and Xamarin) manually. I did, successfully.
Now I have Indie license working just fine, but not my game anymore. Xamarin says "[Choreographer] Skipped 290 frames! The application may be doing too much work on its main thread." and app shows black screen on the device. Always, rebuild/clean/reboot/pray/coffee in any combination does not help. I also tried to change my license back to Trial (successfully), but the game does not run with the same error. I tried to reinstall Xamarin, SDK, ..., everything (Xamarin installer still unable to install everything automatically and asks me to download and install packages manually) - no effect. I didn't see mentioned error message before, never - game was working fine, I swear. So I'm kinda in situation "I did nothing but it does not work anymore".
Please, I spent a day already... I'm thinking to reinstall Windows and the everything, somebody stop me...
Ah, and I also noticed that Xamarin sees my Android SDK installed in "C:\Users\Fedor Bushlanov\AppData\Local\Android\android-sdk". It is not the location where I did install it, since I did to "C:\Program Files (x86)\Android\android-sdk". However, if to change the location in Xamarin settings, it says "System.Diagnostics.Debugger.Mono_UnhandledException_internal...". Internet said better to use what what there originally (we all know the reasons, it's common problem, again), so I do.