I tried to install adt 23.3.0 in Eclipse Kepler, but I have a problem. I tried every thing such as run as administrator or uncheck contact all update sites ... But I still have the same problem. I use Windows 8.1 and the error is:
Cannot complete the install because one or more required items could not be found.
Software being installed: Android Development Tools 22.3.0.v201310242005-887826
(com.android.ide.eclipse.adt.feature.group 22.3.0.v201310242005-887826)
Missing requirement: Android Development Tools 22.3.0.v201310242005-887826
(com.android.ide.eclipse.adt.feature.group 22.3.0.v201310242005-887826) requires 'org.eclipse.wst.sse.core 0.0.0' but it could not be found