Error Report

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Error Code: 
4
Error Message: 
Operation details
Installable Units Reported: 
org.zeroturnaround.eclipse.m2e.feature.feature.group,7.1.3.RELEASE
Detailed Message: 
Your original request has been modified. "JRebel (required)" is already installed, so an update will be performed instead. Cannot complete the install because one or more required items could not be found. Software being installed: JRebel Maven support (requires m2eclipse plugin) 7.1.3.RELEASE (org.zeroturnaround.eclipse.m2e.feature.feature.group 7.1.3.RELEASE) Missing requirement: JRebel Maven support (requires m2eclipse plugin) 7.1.3.RELEASE (org.zeroturnaround.eclipse.m2e.feature.feature.group 7.1.3.RELEASE) requires 'org.eclipse.m2e.core 1.0.0' but it could not be found