eclipse装ADT的时候，出现如下错误，请问有谁知道怎么解决的吗？ Cannot complete the install because of

急求！Cannot complete the install because of a conflicting dependency.Software being installed: SpringSource Tool Suite Grails Support 2.7.1.201107091000-RELEASE (com.springsource.sts.grails.feature.group 2.7.1.201107091000-RELEASE)Software currently installed: Shared profile 1.0.0.1312339441300 (SharedProfile_com.springsource.sts.ide 1.0.0.1312339441300)Only one of the following can be installed at once: Java Development Tools Core 3.7.0.xx-20110628-1600-e37 (org.eclipse.jdt.core 3.7.0.xx-20110628-1600-e37)Java Development Tools Core 3.7.0.v_B61 (org.eclipse.jdt.core 3.7.0.v_B61)