When I try to install the eclipse plugin for GAE I get an error:
Cannot complete the install because one or more required items could not be found. Software being
For me the problem was forgetting to start eclipse as administrator.
If the issue is that we don't yet support 4.2, answer is to have patience. Eclipse plugins are complex beasts, and 4.2 is fairly new.
It turns out that the antivirus (for some unknown reason) blocks the reading of xml file. Solution: PAUSE PROTECTION during installation.
Use this : http://dl.google.com/eclipse/plugin/4.2 as an update site
Source: http://code.google.com/p/google-plugin-for-eclipse/issues/detail?id=71#makechanges
See this post which explains how to work around this: https://plus.google.com/110140945975184013033/posts/ePFpQZYhPQq
How to Install GWT Plugin for Eclipse on 3.8 or Juno:
1. Download zipped update site for 3.7
from http://code.google.com/eclipse/docs/install-from-zip.html
2. Unzip content.jar; rm content.jar
3. Edit content.xml; change
<required namespace='org.eclipse.equinox.p2.iu'
name='org.eclipse.platform.feature.group' range='[3.7.0,3.8.0)'/>
to
<required namespace='org.eclipse.equinox.p2.iu'
name='org.eclipse.platform.feature.group' range='3.7.0'/>
4. jar cMf content.jar content.xml (zip won't work)
5. Install from local update site
Please note that some features of the plugin might not work as they should (for example when running in debugging mode my Eclipse Juno crashed a couple of times).
I also have an issue like this when I am try to install plug in link to plugin in eclipse 4.2.2
Error:
Cannot complete the install because one or more required items could not be found. Software being installed: Google Plugin for Eclipse 4.2 -rel-r42 (com.google.gdt.eclipse.suite.e42.feature.feature.group 3.2.1.v201303211244-rel-r42) Missing requirement: Google Suite Plugin 3.2.1.v201303211244-rel-r42 (com.google.gdt.eclipse.suite.ext 3.2.1.v201303211244-rel-r42) requires 'bundle org.eclipse.mylyn.commons.ui 0.0.0' but it could not be found Cannot satisfy dependency: From: Google Plugin for Eclipse 4.2 3.2.1.v201303211244-rel-r42 (com.google.gdt.eclipse.suite.e42.feature.feature.group 3.2.1.v201303211244-rel-r42) To: com.google.gdt.eclipse.suite.ext [3.2.1.v201303211244-rel-r42]
I fixed this issue by click Help -> Check for updates, after that I installed this plug in and work as expected.