Cannot complete the install because one or more required items could not be found.
  Software being installed: EGit Mylyn 1.1.0.201109151100-r (org.eclipse.egit.mylyn.feature.group 1.1.0.201109151100-r)
  Missing requirement: EGit Mylyn 1.1.0.201109151100-r (org.eclipse.egit.mylyn.feature.group 1.1.0.201109151100-r) requires 'org.eclipse.mylyn.team_feature.feature.group 3.5.0' but it could not be found