I have a legacy server 1.11.6 on which i cannot run groovy based reports. It throws this error.
org.openmrs.module.reporting.report.renderer.template.TemplateEvaluationException: Failed to parse template script (your template may contain an error or be trying to use expressions not currently supported): Failed to create Script instance for class: class SimpleTemplateScript1. Reason: java.lang.ClassCastException: SimpleTemplateScript1 cannot be cast to groovy.lang.GroovyObject.
Any pointer on how to resolve this?