requiere - xamarin.android for visual studio requires android sdk

Visual Studio 2013 Android SDK Manager no funciona

Question

En Visual Studio 2013 cuando voy a Herramientas-> Android-> Android SDK Manager, el diálogo no se muestra. En Xamarin Diagnostics, obtengo lo siguiente:

[I:]:                     Tracking android devices started
[D:]:                     Tracking avd started
[D:]:                     avd watcher *.ini path: ''C:/Users/Jimmy/.android/avd''
[D:]:                     avd watcher android path: ''C:/Android/sdk/tools/android.bat''
[W:]:                     Adb connection refused
[I:]:                     Starting Adb server (adb start-server)
[I:]:                     Adb start-server operation completed
[D:]:                     TrackDeviceTask got: 
[I:]:                     Got new device list from adb with 0 devices
[D:]:                     avd watcher error: load process of avd devices failed, please check the following error: The system cannot find the path specified.
The process cannot access the file because it is being used by another process.
The process cannot access the file because it is being used by another process.
The process cannot access the file because it is being used by another process.
The process cannot access the file because it is being used by another process.
''""C:/Program'' is not recognized as an internal or external command,
operable program or batch file.

Desde otra publicación de SO, he visto que una posible solución es agregar el conjunto java_exe="C:/Program Files/Java/jdk1.8.0_77/bin/java.exe" en find_java.bat dentro de Android/sdk/tools/lib folder Eso tampoco solucionó el problema. Antes de pasar por el doloroso proceso de desinstalar y volver a instalar todo, ¿hay algo que pueda hacer? Me quedé sin ideas...