Sry, need eclipse for a few things
Same error :( Cannot complete the install because one or more required items could not be found.
Software being installed: Subversion Revision Graph 1.0.9 (org.tigris.subversion.subclipse.graph.feature.feature.group 1.0.9)
Missing requirement: Subversion Revision Graph 1.0.9 (org.tigris.subversion.subclipse.graph.feature.feature.group 1.0.9) requires 'org.eclipse.draw2d 3.2.0' but it could not be found