http://stackoverflow.com/questions/24445367/error-in-adt-23-update
http://stackoverflow.com/questions/24437564/update-eclipse-with-android-development-tools-v-23
1 Cannot complete the install because of a conflicting dependency. 2 Software being installed: Android Development Tools 23.0.6.1720515 (com.android.ide.eclipse.adt.feature.feature.group 23.0.6.1720515) 3 Software currently installed: Eclipse IDE for Java Developers 1.3.2.20110301-1807 (epp.package.java 1.3.2.20110301-1807) 4 Only one of the following can be installed at once: 5 Eclipse Preferences Mechanism 3.3.0.v20100503 (org.eclipse.equinox.preferences 3.3.0.v20100503) 6 Eclipse Preferences Mechanism 3.5.1.v20121031-182809 (org.eclipse.equinox.preferences 3.5.1.v20121031-182809) 7 Cannot satisfy dependency: 8 From: Android Development Tools 23.0.6.1720515 (com.android.ide.eclipse.adt.feature.feature.group 23.0.6.1720515) 9 To: org.eclipse.core.runtime 3.7.0 10 Cannot satisfy dependency: 11 From: Eclipse IDE for Java Developers 1.3.2.20110301-1807 (epp.package.java 1.3.2.20110301-1807) 12 To: org.eclipse.epp.package.java.feature.feature.group [1.3.2.20110301-1807] 13 Cannot satisfy dependency: 14 From: Core Runtime 3.8.0.v20120912-155025 (org.eclipse.core.runtime 3.8.0.v20120912-155025) 15 To: bundle org.eclipse.equinox.preferences [3.4.0,4.0.0) 16 Cannot satisfy dependency: 17 From: EPP Java Package 1.3.2.20110301-1807 (org.eclipse.epp.package.java.feature.feature.group 1.3.2.20110301-1807) 18 To: org.eclipse.platform.feature.group [3.6.2.r362_v20110210-9gF78Gs1FrIGnHDHWkEcopoN8AmxeZflGDGKQi] 19 Cannot satisfy dependency: 20 From: Eclipse Platform 3.6.2.r362_v20110210-9gF78Gs1FrIGnHDHWkEcopoN8AmxeZflGDGKQi (org.eclipse.platform.feature.group 3.6.2.r362_v20110210-9gF78Gs1FrIGnHDHWkEcopoN8AmxeZflGDGKQi) 21 To: org.eclipse.rcp.feature.group [3.6.2.r362_v20101104-9SAxFMKFkSAqi8axkv1ZjegmiBLY] 22 Cannot satisfy dependency: 23 From: Eclipse RCP 3.6.2.r362_v20101104-9SAxFMKFkSAqi8axkv1ZjegmiBLY (org.eclipse.rcp.feature.group 3.6.2.r362_v20101104-9SAxFMKFkSAqi8axkv1ZjegmiBLY) 24 To: org.eclipse.equinox.preferences [3.3.0.v20100503]