Hello,<br>First sorry for my bad english,<br>when I execute my rule project an exception <br><br>Exception in thread "main" java.lang.NoClassDefFoundError: org/eclipse/jdt/internal/compiler/env/INameEnvironment<br>&nbsp;&nbsp; &nbsp;at org.drools.compiler.PackageBuilder.loadCompiler(Unknown Source)<br>&nbsp;&nbsp; &nbsp;at org.drools.compiler.PackageBuilder.&lt;init&gt;(Unknown Source)<br>&nbsp;&nbsp; &nbsp;at org.drools.compiler.PackageBuilder.&lt;init&gt;(Unknown Source)<br>&nbsp;&nbsp; &nbsp;at org.drools.jsr94.rules.admin.LocalRuleExecutionSetProviderImpl.createRuleExecutionSet(Unknown Source)<br>&nbsp;&nbsp; &nbsp;at org.drools.jsr94.rules.admin.LocalRuleExecutionSetProviderImpl.createRuleExecutionSet(Unknown Source)<br>&nbsp;&nbsp; &nbsp;at hero.ra.rules.Rule.fireRules(Rule.java:41)<br>&nbsp;&nbsp; &nbsp;at hero.ra.rules.Rule.fireRules(Rule.java:70)<br>&nbsp;&nbsp; &nbsp;at hero.ra.rules.test.main(test.java:129)<br><br><br>the class of&nbsp; java bean is in package 
 hero.rules.data(in folder src)<br>the class of fire rules in hero.ra.rules (in folder src)<br>and the file ".drl" in folder "src"<br>when I make the class javabean and the class of firerule there's not problem<br>Please I need your&nbsp; help<br>Best regards<br>Ismail<p>&#32;


      

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