Hi-

Hope this helps you troubleshoot:

Launch http://dl.google.com/ on your browser and see if it connects.

Then add parameters one by one.
Example:
http://dl.google.com/
then:
http://dl.google.com/eclipse/
then:
http://dl.google.com/eclipse/plugin/
then:
http://dl.google.com/eclipse/plugin/3.5/

..... ..... ..... ....
and finally:
http://dl.google.com/eclipse/plugin/3.5/plugins/com.google.gdt.eclipse.designer.hosted.1_6_2.3.0.r35x201105061507.jar
v23.lscache6.c.bigcache.googleapis.com

HTH
2011/5/20 François Bacconnet <[email protected]>

> I have the same issue with Eclipse 3.5. I tried several times to just
> update and got multiple "Unknown host" errors.
> Today I tried to un-install GWT and to re-install the new version, and
> still I get errors.
> Here's the message:
> An error occurred while collecting items to be installed
>   session context was:(profile=epp.package.jee,
> phase=org.eclipse.equinox.internal.provisional.p2.engine.phases.Collect,
> operand=, action=).
>   Unknown Host:
> http://dl.google.com/eclipse/plugin/3.5/plugins/com.google.gdt.eclipse.designer.hosted.1_6_2.3.0.r35x201105061507.jar
>   v23.lscache6.c.bigcache.googleapis.com
>   Unknown Host:
> http://dl.google.com/eclipse/plugin/3.5/plugins/com.google.gdt.eclipse.designer.hosted.2_0.webkit_win32_2.3.0.r35x201105061507.jar
>   v19.lscache2.c.bigcache.googleapis.com
>   Unknown Host:
> http://dl.google.com/eclipse/plugin/3.5/plugins/com.google.gwt.eclipse.sdkbundle_2.3.0.r35v201104261923.jar
>   v21.lscache2.c.bigcache.googleapis.com
>   Unknown Host:
> http://dl.google.com/eclipse/plugin/3.5/plugins/org.eclipse.wb.core.lib_0.9.0.r35x201105061447.jar
>   v18.lscache2.c.bigcache.googleapis.com
>
> What can I do next?
>
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