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

IF USING ANDROID BUNDLE

close the SDK manager and eclipse. From the SDK folder in bundle goto tools. Copy all files of the tools folder to another folder named toolscopy. Now in cmd navigate to SDK folder then to toolscopy and execute "android.bat". Now the SDK manager will execute and you can update all your updates. you can delete the toolscopy folder as the tools folder will automatically get updatesd :D