eclips galileo.but に adt プラグインをインストールしていますが、以下のエラーが発生します。
Cannot complete the install because one or more required items could not be found.
Software being installed: Android Development Tools 20.0.3.v201208082019-427395 (com.android.ide.eclipse.adt.feature.group 20.0.3.v201208082019-427395)
Missing requirement: Android Development Tools 20.0.3.v201208082019-427395 (com.android.ide.eclipse.adt.feature.group 20.0.3.v201208082019-427395) requires 'org.eclipse.core.runtime 3.6.0' but it could not be found