GWT 2.2 Eclipse update fails -- needs PDE

[Tim McCormack]

I tried upgrading to the latest GWT in Eclipse 3.4 Ganymede SR2 and
received this message:

> Cannot complete the request. See the details.
> Cannot find a solution satisfying the following requirements org.eclipse.pde.build [3.4.1.R34x_v20081217].

Using Ubuntu 10.04 Lucid Lynx x64, running 32-bit Eclipse with ia32
Java libs.

Wiping out the Eclipse install did not help -- and in fact made things
worse: Now I don't have GWT at all!

- Tim McCormack

[Rajeev Dayal]

Hi Tim,

If you navigate to Help -> Software Updates, what Update Sites are listed there?

Thanks,

Rajeev

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[Tim McCormack]

On Feb 14, 7:23 pm, Rajeev Dayal <rda...@google.com> wrote:
> If you navigate to Help -> Software Updates, what Update Sites are listed
> there?

The listing is below. I note that only a few are marked for being used
in installation of new software; I selected all and refreshed, but
that didn't help.

<?xml version="1.0" encoding="UTF-8"?>
<bookmarks>
<site url="http://download.eclipse.org/technology/epp/updates/1.0/"
selected="true" name="EPP Usage Data Collector Update Site"/>
<site url="http://download.eclipse.org/releases/ganymede"
selected="true" name="Ganymede Update Site"/>
<site url="http://dl.google.com/eclipse/plugin/3.4" selected="true"
name=""/>
<site url="http://download.eclipse.org/birt/update-site/2.3"
selected="false" name=""/>
<site url="http://download.eclipse.org/datatools/updates"
selected="false" name=""/>
<site url="http://download.eclipse.org/dsdp/dd/updates"
selected="false" name=""/>
<site url="http://download.eclipse.org/dsdp/nab/updates"
selected="false" name=""/>
<site url="http://download.eclipse.org/dsdp/tm/updates/3.0"
selected="false" name=""/>
<site url="http://download.eclipse.org/modeling/emf/updates/"
selected="false" name=""/>
<site url="http://download.eclipse.org/modeling/emft/updates/"
selected="false" name=""/>
<site url="http://download.eclipse.org/modeling/gmf/updates/
releases/" selected="false" name=""/>
<site url="http://download.eclipse.org/modeling/m2m/updates/"
selected="false" name=""/>
<site url="http://download.eclipse.org/modeling/m2t/updates/"
selected="false" name=""/>
<site url="http://download.eclipse.org/modeling/mdt/updates/"
selected="false" name=""/>
<site url="http://download.eclipse.org/rt/rap/update-site"
selected="false" name=""/>
<site url="http://download.eclipse.org/stp/updates/"
selected="false" name=""/>
<site url="http://download.eclipse.org/technology/dltk/updates/"
selected="false" name=""/>
<site url="http://download.eclipse.org/technology/emft/updates/"
selected="false" name=""/>
<site url="http://download.eclipse.org/tools/buckminster/updates"
selected="false" name=""/>
<site url="http://download.eclipse.org/tools/cdt/releases/ganymede"
selected="false" name=""/>
<site url="http://download.eclipse.org/tools/gef/update-site/
releases/site.xml" selected="false" name=""/>
<site url="http://download.eclipse.org/tools/mylyn/update/e3.4"
selected="false" name=""/>
<site url="http://download.eclipse.org/tools/mylyn/update/extras"
selected="false" name=""/>
<site url="http://download.eclipse.org/webtools/updates/"
selected="false" name=""/>
<site url="http://eclipse.org/tptp/updates/" selected="false"
name=""/>
<site url="http://www.eclipse.org/modeling/emft/?
project=search#search" selected="false" name=""/>
<site url="http://www.eclipse.org/modeling/emft/updates/"
selected="false" name=""/>
<site url="http://download.eclipse.org/eclipse/updates/3.4"
selected="true" name="The Eclipse Project Updates"/>
</bookmarks>

[Rajeev Dayal]

Is it possible for you to try using Eclipse 3.5? I think this is related to a bug in Eclipse's P2 system in Eclipse 3.4. If that's not possible, let me know, and we'll dig deeper.

--

[Tim McCormack]

On Feb 16, 11:11 am, Rajeev Dayal <rda...@google.com> wrote:
> Is it possible for you to try using Eclipse 3.5? I think this is related to
> a bug in Eclipse's P2 system in Eclipse 3.4. If that's not possible, let me
> know, and we'll dig deeper.

I was trying for 3.4 to maintain the same setup as the rest of my
group. I'm doing documentation work on our GWT code, and I think I'll
just mark the minimum Eclipse version as 3.6, possibly 3.5.

I'm using 3.6 now, which works. (However, I am using 64-bit Eclipse
3.6 -- Eclipse 3.4 needs to be 32-bit on Ubuntu Linux x64 due to
<https://bugs.eclipse.org/bugs/show_bug.cgi?id=213194>.) I guess it's
up to you as to whether more investigation is appropriate.

- Tim

[francescoNemesi]

I have the same problem, but I must use 3.4 for compatibility with
other plugins... could you please investigate and fix?

Thank You

[Eric Clayberg]

This is a well known and widely reported general problem with Eclipse
3.4 that has been fixed in newer versions of Eclipse. The problem is
with Eclipse p2 and not with GWT 2.2 itself. If p2 is complaining
about the Eclipse PDE, you can try installing that manually from the
Eclipse update site. GWT/GPE 2.2 does require the PDE (which is a
standard part of the Eclipse SDK) but does not prereq any specific
version so the exact error message is being triggered by Eclipse and
not GWT/GPE.

-Eric