Can't intall ATD plugin in eclipse

[stutech123]

am using indigo 3.7,i tried many ways,but i keep getting this error,please help :

Cannot complete the install because of a conflicting dependency.
Software being installed: Android Development Tools 11.0.0.v201105251008-128486 (com.android.ide.eclipse.adt.feature.group 11.0.0.v201105251008-128486)
Software currently installed: Eclipse SDK 3.4.2.M20090211-1700 (org.eclipse.sdk.ide 3.4.2.M20090211-1700)
Only one of the following can be installed at once:
Views 3.6.0.I20110412-0800 (org.eclipse.ui.views 3.6.0.I20110412-0800)
Views 3.3.1.M20081112-0800 (org.eclipse.ui.views 3.3.1.M20081112-0800)
Cannot satisfy dependency:
From: Android Development Tools 11.0.0.v201105251008-128486 (com.android.ide.eclipse.adt.feature.group 11.0.0.v201105251008-128486)
To: org.eclipse.wst.sse.ui 0.0.0
Cannot satisfy dependency:
From: Eclipse Platform 3.4.2.R342_v20090122-9I96EiWElHi8lheoJKJIvhM3JfVsYbRrgVIWL (org.eclipse.platform.feature.group 3.4.2.R342_v20090122-9I96EiWElHi8lheoJKJIvhM3JfVsYbRrgVIWL)
To: org.eclipse.ui.views [3.3.1.M20081112-0800]
Cannot satisfy dependency:
From: Eclipse Project SDK 3.4.2.R342_v20090122-7O7S7GApJ3_vCyk7ETmsfcmjhz0eHnqw7MIjk9Vdhe4Ic (org.eclipse.sdk.feature.group 3.4.2.R342_v20090122-7O7S7GApJ3_vCyk7ETmsfcmjhz0eHnqw7MIjk9Vdhe4Ic)
To: org.eclipse.platform.feature.group [3.4.2.R342_v20090122-9I96EiWElHi8lheoJKJIvhM3JfVsYbRrgVIWL]
Cannot satisfy dependency:
From: Eclipse SDK 3.4.2.M20090211-1700 (org.eclipse.sdk.ide 3.4.2.M20090211-1700)
To: org.eclipse.sdk.feature.group [3.4.2.R342_v20090122-7O7S7GApJ3_vCyk7ETmsfcmjhz0eHnqw7MIjk9Vdhe4Ic]
Cannot satisfy dependency:
From: Structured Source Editor 1.3.0.v201105101529 (org.eclipse.wst.sse.ui 1.3.0.v201105101529)
To: bundle org.eclipse.ui.views [3.4.0,4.0.0)