I have a business license, but posting the issue here because it might affect others.
My Galaxy S3 got upgraded to Android 4.3 recently. Since that time, I cannot use the Fast Deployment option anymore (running Visual Studio 2012, Xamarin.Android 4.10.1).
The detailed error is:
Xamarin.AndroidTools.AndroidDeploymentException: FailedToSynchronizeFastDevAssemblies ---> Mono.AndroidTools.AdbException: Permission denied
at Mono.AndroidTools.Util.AggregateAsyncResult.CheckError(CancellationToken token)
at Mono.AndroidTools.Adb.AdbSyncClient.EndPushSyncItems(IAsyncResult result)
at Mono.AndroidTools.Internal.AdbClientTaskExtensions.InnerInvoke(TaskCompletionSource1 tcs, Func2 endMethod, IAsyncResult l)
--- End of inner exception stack trace ---
at Xamarin.AndroidTools.AndroidDeploySession.InstallAssemblies(String destinationPath, CancellationToken token)
at Xamarin.AndroidTools.AndroidDeploySession.FastDev()
at Xamarin.AndroidTools.AndroidDeploySession.Run(CancellationToken token)
at Xamarin.AndroidTools.AndroidDeploySession.RunLogged(CancellationToken token)
at Xamarin.AndroidTools.AndroidDeploySession.Start(CancellationToken token)
Turning Fast Deployment off makes things work again.
Karl