i face this problem with the updating plz help
An error occurred while collecting items to be installed
session context was:(profile=epp.package.java, phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=, action=).
Unable to read repository at http://dl-ssl.google.com/android/eclipse/plugins/com.android.ide.eclipse.adt_20.0.3.v201208082019-427395.jar.
Read timed out
Check your proxy settings (using – Window -> Preferences -> General -> Network Connections
In case you are directly connected to Internet then select direct other wise provide appropriate information for HTTP proxy (if you are behind proxy)
If correct settings in place then it should solve the issue.