a solution of this message error of protege

[Abbadi Net]

Error 4...........................
NoClassDefFoundError: Could not initialize class gurobi.GurobiJni
gurobi.GRBEnv.<init>(GRBEnv.java:16)
gurobi.GRBEnv.<init>(GRBEnv.java:11)
fuzzydl.milp.MILPHelper.solveGurobi(MILPHelper.java:701)
fuzzydl.milp.MILPHelper.optimize(MILPHelper.java:84)
fuzzydl.KnowledgeBase.optimize(KnowledgeBase.java:7870)
fuzzydl.MinSatisfiableQuery.solve(MinSatisfiableQuery.java:73)
FuzzyOWL2Plugin.FuzzyDLReasonerQueryPanel.solveButtonPressed(FuzzyDLReasonerQueryPanel.java:719)
FuzzyOWL2Plugin.FuzzyDLReasonerQueryPanel.access$2(FuzzyDLReasonerQueryPanel.java:605)
FuzzyOWL2Plugin.FuzzyDLReasonerQueryPanel$2.actionPerformed(FuzzyDLReasonerQueryPanel.java:162)
javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
javax.swing.DefaultButtonModel.setPressed(Unknown Source)
javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
java.awt.Component.processMouseEvent(Unknown Source)
javax.swing.JComponent.processMouseEvent(Unknown Source)
java.awt.Component.processEvent(Unknown Source)
java.awt.Container.processEvent(Unknown Source)
java.awt.Component.dispatchEventImpl(Unknown Source)
java.awt.Container.dispatchEventImpl(Unknown Source)
java.awt.Component.dispatchEvent(Unknown Source)
java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
java.awt.Container.dispatchEventImpl(Unknown Source)
java.awt.Window.dispatchEventImpl(Unknown Source)
java.awt.Component.dispatchEvent(Unknown Source)
java.awt.EventQueue.dispatchEventImpl(Unknown Source)
java.awt.EventQueue.access$000(Unknown Source)
java.awt.EventQueue$1.run(Unknown Source)
java.awt.EventQueue$1.run(Unknown Source)
java.security.AccessController.doPrivileged(Native Method)
java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
java.awt.EventQueue$2.run(Unknown Source)
java.awt.EventQueue$2.run(Unknown Source)
java.security.AccessController.doPrivileged(Native Method)
java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
java.awt.EventQueue.dispatchEvent(Unknown Source)
java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
java.awt.EventDispatchThread.pumpEvents(Unknown Source)
java.awt.EventDispatchThread.pumpEvents(Unknown Source)
java.awt.EventDispatchThread.run(Unknown Source)

[Robert Luce]

Hi,

the error could hint at an issue with the setup of your Gurobi installation.  Which Gurobi version and OS are you using?  Could you please try runninig the java examples that are shipped along?  To do this, go the 'examples/build' directory, and do a 'make run_java'.

Best,

Robert