android更新ADT时出现这种情况？

Cannot complete the install because of a conflicting dependency.
Software being installed: Android Development Tools 23.0.3.1327240 (com.android.ide.eclipse.adt.feature.feature.group 23.0.3.1327240)
Software currently installed: Android Developer Tools 22.3.0.v201310242005-887826 (com.android.ide.eclipse.adt.package.product 22.3.0.v201310242005-887826)
Only one of the following can be installed at once:
Android Development Toolkit 23.0.3.1327240 (com.android.ide.eclipse.adt 23.0.3.1327240)
Android Development Toolkit 23.0.0.1245622 (com.android.ide.eclipse.adt 23.0.0.1245622)
Android Development Toolkit 22.3.0.v201310242005-887826 (com.android.ide.eclipse.adt 22.3.0.v201310242005-887826)
com.android.ide.eclipse.adt 21.1.0.v201302060044-569685
Cannot satisfy dependency:
From: Android Development Tools 23.0.3.1327240 (com.android.ide.eclipse.adt.feature.feature.group 23.0.3.1327240)
To: com.android.ide.eclipse.adt [23.0.3.1327240]
Cannot satisfy dependency:
From: Android Development Tools 22.3.0.v201310242005-887826 (com.android.ide.eclipse.adt.feature.group 22.3.0.v201310242005-887826)
To: com.android.ide.eclipse.adt [22.3.0.v201310242005-887826]
o: com.android.ide.eclipse.adt.package.feature.group [22.3.0.v201310242005-887826]

可是我卸载不了原来的版本啊

把Eclispe删除重新下一个，然后配置JDK，SDK， ADT，等。也就是说，重新做一遍环境搭建！