An error occurred while installing the items
Session context was: (profile=SDKProfile, phase=org. Eclipse equinox. Internal. P2. Engine. The phases. Install, operand=null - & gt; [R] org.eclipse.emf.com mon. Feature. Jar 2.15.0. V20180723-1316, action=org. The eclipse equinox. Internal. P2. Touchpoint. Eclipse actions. InstallFeatureAction).
The an artifact file for org. Eclipse. The update. The feature, org.eclipse.emf.com mon, 2.15.0. V20180723-1316 was not found.
What is the problem how to solve ah