'org.eclipse.platform.feature.group [3.4.0,4.0.0)' could not be found

Question

I am trying to install an in-house plugin that I has installed several time before but this time I am getting these errors:

Does it mean it is not compatible with the new EClipse Juno I am using?

Cannot complete the install because one or more required items could not be found.
  Software being installed: Maven 2 Tools 2.0.1 (com.Company.engineering.maven.feature.feature.group 2.0.1)

  Missing requirement: Maven 2 Tools 2.0.1 (com.Company.engineering.maven.feature.feature.group 2.0.1) requires 'org.eclipse.platform.feature.group [3.4.0,4.0.0)' but it could not be found

Answer 1

Your in-house plugin is not compatible with the default Eclipse Juno distribution, which is built on Eclipse 4.2. You can see that in your plugin:(com.Company.engineering.maven.feature.feature.group) there is dependency on the Eclipse Platform from [3.4.0, 4.0.0). This means that you plugin will work with Eclipse 3.4 up-to (but not including) 4.0.0.

You have two options here:

1. Update your plugin. There is a compatibility layer between Eclipse 3.x and 4.x, so you might just need to update the version ranges in your dependency. This assumes you have access to com.Company.engineering.maven.feature.feature.group.

2. Use Eclipse 3.8 as your base. You can get this from http://download.eclipse.org/eclipse/downloads/eclipse3x.html. However, this will be the last Eclipse release based on 3.x, so you should consider updating soon.