<div dir="ltr"><div><div><div><div>Hi,<br></div>I am using planner 6.0.0.beta5. to schedule some kind of events like in curriculum example, and created web front end for this using Vaadin. <br>but for some reason some users (only few) from this web client get this exception (at the end) and scheduler fails.<br>
</div>What could have been the cause for this? the code I have is as follows.<br><br>SolverFactory solverFactory = new XmlSolverFactory(<br>                &quot;/org/optaplanner/examples/curriculumcourse/solver/curriculumCourseSolverConfig.xml&quot;);<br>
        TerminationConfig tc = solverFactory.getSolverConfig().getTerminationConfig();<br>        tc.setMaximumSecondsSpend(120L);<br>        Solver solver = solverFactory.buildSolver();<br><br></div>creating the solver is throwing the exception.<br>
<br></div>log:<br><br><i>java.lang.IllegalArgumentException: conflict Resolver &#39;org.drools.core.conflict.DepthConflictResolver&#39; not found<br>        at org.drools.core.RuleBaseConfiguration.determineConflictResolver(RuleBaseConfiguration.java:866) ~[drools-core-6.0.0.Beta5.jar:6.0.0.Beta5]<br>
        at org.drools.core.RuleBaseConfiguration.init(RuleBaseConfiguration.java:455) ~[drools-core-6.0.0.Beta5.jar:6.0.0.Beta5]<br>        at org.drools.core.RuleBaseConfiguration.init(RuleBaseConfiguration.java:411) ~[drools-core-6.0.0.Beta5.jar:6.0.0.Beta5]<br>
        at org.drools.core.RuleBaseConfiguration.&lt;init&gt;(RuleBaseConfiguration.java:262) ~[drools-core-6.0.0.Beta5.jar:6.0.0.Beta5]<br>        at org.drools.compiler.kie.builder.impl.KieServicesImpl.newKieBaseConfiguration(KieServicesImpl.java:146) ~[drools-compiler-6.0.0.Beta5.jar:6.0.0.Beta5]<br>
        at org.optaplanner.core.config.score.director.ScoreDirectorFactoryConfig.buildKieBase(ScoreDirectorFactoryConfig.java:330) ~[optaplanner-core-6.0.0.Beta5.jar:6.0.0.Beta5]<br>        at org.optaplanner.core.config.score.director.ScoreDirectorFactoryConfig.buildDroolsScoreDirectorFactory(ScoreDirectorFactoryConfig.java:280) ~[optaplanner-core-6.0.0.Beta5.jar:6.0.0.Beta5]<br>
        at org.optaplanner.core.config.score.director.ScoreDirectorFactoryConfig.buildScoreDirectorFactory(ScoreDirectorFactoryConfig.java:187) ~[optaplanner-core-6.0.0.Beta5.jar:6.0.0.Beta5]<br>        at org.optaplanner.core.config.score.director.ScoreDirectorFactoryConfig.buildScoreDirectorFactory(ScoreDirectorFactoryConfig.java:175) ~[optaplanner-core-6.0.0.Beta5.jar:6.0.0.Beta5]<br>
        at org.optaplanner.core.config.solver.SolverConfig.buildSolver(SolverConfig.java:145) ~[optaplanner-core-6.0.0.Beta5.jar:6.0.0.Beta5]<br>        at org.optaplanner.core.config.solver.XmlSolverFactory.buildSolver(XmlSolverFactory.java:104) ~[optaplanner-core-6.0.0.Beta5.jar:6.0.0.Beta5]</i><br clear="all">
<div><div><div><div><div><br>-- <br>Regards,<br>Sandeep Bandela.<br>
</div></div></div></div></div></div>