hello,<br>When I execute my code Java an error is affiched<br>[java] Exception in thread "main" java.lang.NoClassDefFoundError: org/antlr/stringtemplate/StringTemplateGroup<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [java] &nbsp;&nbsp;&nbsp; at org.drools.semantics.java.RuleBuilder.&lt;clinit&gt;(Unknown Source)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [java] &nbsp;&nbsp;&nbsp; at org.drools.compiler.PackageBuilder.addRule(Unknown Source)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [java] &nbsp;&nbsp;&nbsp; at org.drools.compiler.PackageBuilder.addPackage(Unknown Source)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [java] &nbsp;&nbsp;&nbsp; at org.drools.compiler.PackageBuilder.addPackageFromDrl(Unknown Source)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [java] &nbsp;&nbsp;&nbsp; at org.drools.jsr94.rules.admin.LocalRuleExecutionSetProviderImpl.createRuleExecutionSet(Unknown Source)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [java] &nbsp;&nbsp;&nbsp; at
 org.drools.jsr94.rules.admin.LocalRuleExecutionSetProviderImpl.createRuleExecutionSet(Unknown Source)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [java] &nbsp;&nbsp;&nbsp; at hero.client.test.DroolsTest.main(DroolsTest.java:32)<br><br>I'm sure that the class org/antlr/stringtemplate/StringTemplateGroup exist<br>thank you for your help.<br>Best regards<br>Ismail<br><p>&#32;


      

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