I receive the following message while using the cpd goal in the PMD maven plugin.
maven.plugins:maven-pmd-plugin:3.13.0:cpd (cpd) on project DSAlgos: Execution cpd of goal org.apache.maven.plugins:maven-pmd-plugin:3.13.0:cpd failed: org.apache.maven.reporting.MavenReportException: Can't find CPD custom format txt: java.lang.ClassNotFoundException The documentation states that the txt format is supported. https://maven.apache.org/plugins/maven-pmd-plugin/cpd-mojo.html#format The pmd goal supports the txt format. Regards, Linus.