Error Messages

I am tired of receiving the below error message and i thought that maybe someone might interpret it better than i can.

Error during simulation.




Alice version: 2.2 1/13/2009



Throwable that caused the error:

javax.vecmath.SingularMatrixException: cannot invert matrix

at javax.vecmath.Matrix4d.invertGeneral(Matrix4d.java :1996)

at javax.vecmath.Matrix4d.invert(Matrix4d.java:1951)

at edu.cmu.cs.stage3.alice.scenegraph.Transformable.g etInverseAbsoluteTransformation(Transformable.java :119)

at edu.cmu.cs.stage3.alice.scenegraph.Transformable.c alculateTransformation(Transformable.java:160)

at edu.cmu.cs.stage3.alice.scenegraph.Transformable.s etTransformation(Transformable.java:177)

at edu.cmu.cs.stage3.alice.scenegraph.Transformable.r otate(Transformable.java:326)

at edu.cmu.cs.stage3.alice.scenegraph.Transformable.c alculatePointAt(Transformable.java:252)

at edu.cmu.cs.stage3.alice.core.Transformable.calcula tePointAt(Transformable.java:470)

at edu.cmu.cs.stage3.alice.core.response.AbstractPoin tAtAnimation$RuntimeAbstractPointAtAnimation.getTa rgetMatrix33(AbstractPointAtAnimation.java:54)

at edu.cmu.cs.stage3.alice.core.response.AbstractPoin tAtAnimation$RuntimeAbstractPointAtAnimation.getTa rgetQuaternion(AbstractPointAtAnimation.java:57)

at edu.cmu.cs.stage3.alice.core.response.OrientationA nimation$RuntimeOrientationAnimation.update(Orient ationAnimation.java:56)

at edu.cmu.cs.stage3.alice.core.response.AbstractPoin tAtAnimation$RuntimeAbstractPointAtAnimation.updat e(AbstractPointAtAnimation.java:62)

at edu.cmu.cs.stage3.alice.core.response.DoTogether$R untimeDoTogether.update(DoTogether.java:68)

at edu.cmu.cs.stage3.alice.core.response.DoInOrder$Ru ntimeDoInOrder.childUpdate(DoInOrder.java:57)

at edu.cmu.cs.stage3.alice.core.response.DoInOrder$Ru ntimeDoInOrder.update(DoInOrder.java:98)

at edu.cmu.cs.stage3.alice.core.response.DoTogether$R untimeDoTogether.update(DoTogether.java:68)

at edu.cmu.cs.stage3.alice.core.response.DoInOrder$Ru ntimeDoInOrder.childUpdate(DoInOrder.java:57)

at edu.cmu.cs.stage3.alice.core.response.DoInOrder$Ru ntimeDoInOrder.update(DoInOrder.java:98)

at edu.cmu.cs.stage3.alice.core.response.CallToUserDe finedResponse$RuntimeCallToUserDefinedResponse.upd ate(CallToUserDefinedResponse.java:86)

at edu.cmu.cs.stage3.alice.core.behavior.TriggerBehav ior.internalSchedule(TriggerBehavior.java:69)

at edu.cmu.cs.stage3.alice.core.Behavior.schedule(Beh avior.java:225)

at edu.cmu.cs.stage3.alice.core.Sandbox.scheduleBehav iors(Sandbox.java:70)

at edu.cmu.cs.stage3.alice.core.World.scheduleBehavio rs(World.java:444)

at edu.cmu.cs.stage3.alice.core.World.schedule(World. java:486)

at edu.cmu.cs.stage3.alice.core.clock.DefaultClock.sc hedule(DefaultClock.java:99)

at edu.cmu.cs.stage3.alice.authoringtool.AuthoringToo l$11.run(AuthoringTool.java:698)

at edu.cmu.cs.stage3.alice.authoringtool.util.Default Scheduler.simulateOnce(DefaultScheduler.java:115)

at edu.cmu.cs.stage3.alice.authoringtool.util.Default Scheduler.run(DefaultScheduler.java:76)

at edu.cmu.cs.stage3.scheduler.AbstractScheduler.run( AbstractScheduler.java:45)

at java.awt.event.InvocationEvent.dispatch(Unknown Source)

at java.awt.EventQueue.dispatchEvent(Unknown Source)

at java.awt.EventDispatchThread.pumpOneEventForFilter s(Unknown Source)

at java.awt.EventDispatchThread.pumpEventsForFilter(U nknown Source)

at java.awt.EventDispatchThread.pumpEventsForFilter(U nknown Source)

at java.awt.Dialog$1.run(Unknown Source)

at java.awt.Dialog$3.run(Unknown Source)

at java.security.AccessController.doPrivileged(Native Method)

at java.awt.Dialog.show(Unknown Source)

at java.awt.Component.show(Unknown Source)

at java.awt.Component.setVisible(Unknown Source)

at java.awt.Window.setVisible(Unknown Source)

at java.awt.Dialog.setVisible(Unknown Source)

at edu.cmu.cs.stage3.swing.DialogManager.showModalDia log(DialogManager.java:60)

at edu.cmu.cs.stage3.swing.DialogManager.showDialog(D ialogManager.java:128)

at edu.cmu.cs.stage3.alice.authoringtool.AuthoringToo l.play(AuthoringTool.java:5157)

at edu.cmu.cs.stage3.alice.authoringtool.Actions$15.a ctionPerformed(Actions.java:168)

at javax.swing.AbstractButton.fireActionPerformed(Unk nown Source)

at javax.swing.AbstractButton$Handler.actionPerformed (Unknown Source)

at javax.swing.DefaultButtonModel.fireActionPerformed (Unknown Source)

at javax.swing.DefaultButtonModel.setPressed(Unknown Source)

at javax.swing.plaf.basic.BasicButtonListener.mouseRe leased(Unknown Source)

at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)

at java.awt.Component.processMouseEvent(Unknown Source)

at javax.swing.JComponent.processMouseEvent(Unknown Source)

at java.awt.Component.processEvent(Unknown Source)

at java.awt.Container.processEvent(Unknown Source)

at java.awt.Component.dispatchEventImpl(Unknown Source)

at java.awt.Container.dispatchEventImpl(Unknown Source)

at java.awt.Component.dispatchEvent(Unknown Source)

at java.awt.LightweightDispatcher.retargetMouseEvent( Unknown Source)

at java.awt.LightweightDispatcher.processMouseEvent(U nknown Source)

at java.awt.LightweightDispatcher.dispatchEvent(Unkno wn Source)

at java.awt.Container.dispatchEventImpl(Unknown Source)

at java.awt.Window.dispatchEventImpl(Unknown Source)

at java.awt.Component.dispatchEvent(Unknown Source)

at java.awt.EventQueue.dispatchEvent(Unknown Source)

at java.awt.EventDispatchThread.pumpOneEventForFilter s(Unknown Source)

at java.awt.EventDispatchThread.pumpEventsForFilter(U nknown Source)

at java.awt.EventDispatchThread.pumpEventsForHierarch y(Unknown Source)

at java.awt.EventDispatchThread.pumpEvents(Unknown Source)

at java.awt.EventDispatchThread.pumpEvents(Unknown Source)

at java.awt.EventDispatchThread.run(Unknown Source)