I generate the report skipping Gendarme execution (because it fails) but I run FxCop, StyleCop, PartCover and Gallio. The report shows "Most violated files", "Most complex files" and "Most duplicated files" but "Most violated rules" is empty. The section "Violation details" is empty too.
I can see this information in Sonar... I execute the command mvn clean install sonar:sonar org.codehaus.sonar-plugins.pdf-report:maven-pdfreport-plugin:1.2.1:generate -Dreport.type=workbook