hello,<br>when I execute this code<br><span style="font-weight: bold;">rule "sample6"</span><br style="font-weight: bold;"><span style="font-weight: bold;">when</span><br style="font-weight: bold;"><span style="font-weight: bold;">act :activity( Type == 5)</span><br style="font-weight: bold;"><span style="font-weight: bold;">&nbsp; //nod: act.getNodeProperty()</span><br style="font-weight: bold;"><span style="font-weight: bold;">//nod.Property(key1: Key, value1:value)</span><br style="font-weight: bold;"><span style="font-weight: bold;">//nod.Property(key2: Key, value==value1)</span><br style="font-weight: bold;"><span style="font-weight: bold;">then</span><br style="font-weight: bold;"><span style="font-weight: bold;">System.out.println("deux clés ont la meme valeurs");</span><br style="font-weight: bold;"><span style="font-weight: bold;">end<br></span><br><span style="text-decoration: underline;">error is affiiched</span><span style="font-weight: bold; font-style:
 italic;"><br><br><br style="font-weight: bold; font-style: italic;"></span><span style="font-weight: bold; font-style: italic;">&nbsp;Exception in thread "main" org.drools.rule.InvalidRulePackage: Unable to create Field Extractor for 'Type'</span><br style="font-weight: bold; font-style: italic;"><br style="font-weight: bold; font-style: italic;"><span style="font-weight: bold; font-style: italic;">&nbsp;&nbsp;&nbsp; at org.drools.rule.Package.checkValidity(Unknown Source)</span><br style="font-weight: bold; font-style: italic;"><span style="font-weight: bold; font-style: italic;">&nbsp;&nbsp;&nbsp; at org.drools.common.AbstractRuleBase.addPackage(Unknown Source)</span><br style="font-weight: bold; font-style: italic;"><span style="font-weight: bold; font-style: italic;">&nbsp;&nbsp;&nbsp; at org.drools.jsr94.rules.admin.RuleExecutionSetImpl.&lt;init&gt;(Unknown Source)</span><br style="font-weight: bold; font-style: italic;"><span style="font-weight: bold; font-style:
 italic;">&nbsp;&nbsp;&nbsp; at org.drools.jsr94.rules.admin.LocalRuleExecutionSetProviderImpl.createRuleExecutionSet(Unknown Source)</span><br style="font-weight: bold; font-style: italic;"><span style="font-weight: bold; font-style: italic;">&nbsp;&nbsp;&nbsp; at org.drools.jsr94.rules.admin.LocalRuleExecutionSetProviderImpl.createRuleExecutionSet(Unknown Source)</span><br style="font-weight: bold; font-style: italic;"><span style="font-weight: bold; font-style: italic;">&nbsp;&nbsp;&nbsp; at org.drools.jsr94.rules.admin.LocalRuleExecutionSetProviderImpl.createRuleExecutionSet(Unknown Source)</span><br style="font-weight: bold; font-style: italic;"><span style="font-weight: bold; font-style: italic;">&nbsp;&nbsp;&nbsp; at com.sample.Rule.fireRules(Rule.java:41)</span><br style="font-weight: bold; font-style: italic;"><span style="font-weight: bold; font-style: italic;">&nbsp;&nbsp;&nbsp; at com.sample.Rule.fireRules(Rule.java:70)</span><br style="font-weight: bold;
 font-style: italic;"><span style="font-weight: bold; font-style: italic;">&nbsp;&nbsp;&nbsp; at com.sample.DroolsTest.main(DroolsTest.java:59)</span><br style="font-weight: bold; font-style: italic;"><br style="font-weight: bold; font-style: italic;">however the attribut Type exist in class activity<br>Best regard<br>Thank you for your help<br><p>&#32;
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