here is the error I get on eclipse 3.6.0:
Cannot complete the install because of a conflicting dependency.
Software being installed: b3 Aggregator Editor (Incubation) 0.1.0.r01404 (org.eclipse.b3.aggregator.editor.feature.feature.group 0.1.0.r01404)
Software currently installed: Eclipse SDK 3.6.0.I20100608-0911 (org.eclipse.sdk.ide 3.6.0.I20100608-0911)
Only one of the following can be installed at once:
Update site repository adapter bundle (Incubation) 1.0.201.R36x_v20100823 (org.eclipse.equinox.p2.updatesite 1.0.201.R36x_v20100823)
Update site repository adapter bundle (Incubation) 1.0.200.v20100503 (org.eclipse.equinox.p2.updatesite 1.0.200.v20100503)
Cannot satisfy dependency:
From: b3 Aggregator Editor (Incubation) 0.1.0.r01404 (org.eclipse.b3.aggregator.editor.feature.feature.group 0.1.0.r01404)
To: org.eclipse.b3.aggregator.engine.feature.feature.group [0.1.0.r01404]
Cannot satisfy dependency:
From: b3 Aggregator Engine (Incubation) 0.1.0.r01404 (org.eclipse.b3.aggregator.engine.feature.feature.group 0.1.0.r01404)
To: org.eclipse.equinox.p2.updatesite [1.0.201.R36x_v20100823]
Cannot satisfy dependency:
From: Equinox p2 Provisioning 2.0.0.v20100503-897HFZ-FdHjO2NQo0sD_Nt (org.eclipse.equinox.p2.user.ui.feature.group 2.0.0.v20100503-897HFZ-FdHjO2NQo0sD_Nt)
To: org.eclipse.equinox.p2.updatesite [1.0.200.v20100503]
Cannot satisfy dependency:
From: Eclipse SDK 3.6.0.I20100608-0911 (org.eclipse.sdk.ide 3.6.0.I20100608-0911)
To: org.eclipse.equinox.p2.user.ui.feature.group [2.0.0.v20100503-897HFZ-FdHjO2NQo0sD_Nt]