Error Report

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Error Code: 
4
Error Message: 
Operation details
Installable Units Reported: 
com.genuitec.eclipse.theming.feature.feature.group,1.8.4.201709142212
Detailed Message: 
Cannot complete the install because one or more required items could not be found. Software currently installed: ANTLR 4.5.2 (org.antlr.v4.feature.group 4.5.2) Missing requirement: ANTLR 4.5.2 (org.antlr.v4.feature.group 4.5.2) requires 'org.antlr.antlr4-runtime-osgi [4.5.2.1]' but it could not be found