There is a possibility that SDK fails to update. This is a known issue since revision 8: http://code.google.com/p/android/issues/detail?id=11989
Normally, you will be informed by the Android SDK Manager Log:
Downloading Android SDK Tools, revision 16
Installing Android SDK Tools, revision 16
[post_tools_install.bat] Updating SDK Manager.exe
[post_tools_install.bat] 0 file(s) copied.
[post_tools_install.bat] Error: The process cannot access the file because it is being used by another process.
[post_tools_install.bat] Updating AVD Manager.exe
[post_tools_install.bat] 1 file(s) copied.
Installed Android SDK Tools, revision 16
The solution is simple:
- Ensure that your Explorer is closed and not/or not listing your SDK tools folder. It seems that explorer locks tools.
- Open a CMD window and go to your SDK tools folder.
- Run android.bat