I recently attempted installing the Aptana (web dev functionality based off of Eclipse) studio after messing up my stand-alone version (which was outdated anyways). The installation process seemed relatively simple but upon install, I received an ambiguous error message saying:
An error occurred while installing the items
session context was:(profile=PlatformProfile, phase=org.eclipse.equinox.internal.provisional.p2.engine.phases.Install, operand=null --> [R]org.eclipse.ant.ui 3.4.1.v20090901_r351, action=org.eclipse.equinox.internal.p2.touchpoint.eclipse.actions.InstallBundleAction).
The artifact file for osgi.bundle,org.eclipse.ant.ui,3.4.1.v20090901_r351 was not found.
session context was:(profile=
The artifact file for osgi.bundle,
After searching this for a bit, I stumbled upon a bug report for Eclipse that addressed this issue.
The simple solution, crack open a fresh new terminal window (or one you already have open of course) and type in sudo apt-get install eclipse-pde .
Attempt reinstalling the Aptana plugin and all should go smoothly now.
