SDK Manager failed to install 'java.exe' locking directory

Question

I have ran into a curious error when trying to update Android SDK Tools to revision 21 from revision 20.0.3. The ADT plug-in updated p

Answer 1

I solved it in a very simple way, worked well for me.

1. close eclipse.exe
2. go to your directory containing android-sdks
3. run SDK Manager.exe
4. install required packages
5. close sdk Manager.exe
6. Start eclipse and you are almost there
7. update your ADT plugins by visiting Help menu in eclipse and then Check for Updates
8. in case if it doesn't (which it didn't in my case remove the old versions of plugins manually) work and install them again from https://dl-ssl.google.com/android/eclipse/