Android Exception 16(Error in ADT 23 Update)

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]