error while creating displays

panllrose

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运行程序时，repast给出的错误信息看不明白，怎么查找问题所在呢？我的版本是RS1.2.0，参考predator prey示例写的，context只有一个continuous space，上面分布pedestrian.agent。错误信息如下：

, A/ U) V. d# o2012/06/13 09:59:23,312: Error while creating displays
java.lang.RuntimeException: Projection 'ContinuousSpace' not found.
        at repast.simphony.visualization.engine.DisplayProducer.createLayout(DisplayProducer.java:540)
        at repast.simphony.visualization.engine.DisplayProducer.createDisplay2D(DisplayProducer.java:187)
7 ^0 t7 x8 b+ x" d) g( P$ U        at repast.simphony.visualization.engine.DisplayProducer.createDisplay(DisplayProducer.java:88)
        at repast.simphony.visualization.engine.DisplayComponentControllerAction.runInitialize(DisplayComponentControllerAction.java:90)
        at repast.simphony.engine.controller.DefaultController$2.visit(DefaultController.java:171)
        at repast.simphony.engine.controller.DefaultController$2.visit(DefaultController.java:1)
" {8 ^7 `8 H+ T- ~$ W+ O- }! n        at repast.simphony.util.collections.NaryTree.preOrderTraverals(NaryTree.java:287)
3 m- g7 I' l5 _4 {  K        at repast.simphony.util.collections.NaryTree.preOrderTraverals(NaryTree.java:290)
) ~' N- }. [4 Y        at repast.simphony.util.collections.NaryTree.preOrderTraverals(NaryTree.java:290)
% L& T, D; [2 U0 f7 m$ e, a1 ^        at repast.simphony.util.collections.NaryTree.preOrderTraversal(NaryTree.java:283)
' [  T- J- w- q5 x        at repast.simphony.engine.controller.DefaultController.runInitialize(DefaultController.java:169)
1 n/ L! \5 q. E2 N+ f- q3 m        at repast.simphony.engine.controller.DefaultController.runInitialize(DefaultController.java:324)
" Y0 H% U" J  s* W6 N        at repast.simphony.ui.RSApplication.initSim(RSApplication.java:134)
        at repast.simphony.ui.action.InitRun.actionPerformed(InitRun.java:17)
* ?/ m3 m" @1 p        at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
        at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
        at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
        at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
- Z' G8 @2 [9 ~' T8 U% U! x        at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
        at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
/ x$ `$ P6 [# W( b( P0 E; D        at java.awt.Component.processMouseEvent(Unknown Source)
0 f; _$ z9 ^9 e1 D; b        at javax.swing.JComponent.processMouseEvent(Unknown Source)
        at java.awt.Component.processEvent(Unknown Source)
9 q, d* |( e) K        at java.awt.Container.processEvent(Unknown Source)
* ?9 p( e# o# q" e        at java.awt.Component.dispatchEventImpl(Unknown Source)
        at java.awt.Container.dispatchEventImpl(Unknown Source)
        at java.awt.Component.dispatchEvent(Unknown Source)
, R  _2 o: D4 V/ Y( H7 h. s        at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
4 C% Y* \; ~/ K4 |: }* z        at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
' [7 b& M, k; X. s5 |. H6 B        at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
* C4 ~$ W8 T& I+ S- @        at java.awt.Container.dispatchEventImpl(Unknown Source)
, g9 J/ k/ t1 d4 b5 ~        at java.awt.Window.dispatchEventImpl(Unknown Source)
/ w  y! i4 V. p- ^! S# Y        at java.awt.Component.dispatchEvent(Unknown Source)
        at java.awt.EventQueue.dispatchEvent(Unknown Source)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
        at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
- D6 u& |- ]* W& P/ ]' I4 M        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
+ H$ ]# ]6 G5 P" u2 ~        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.run(Unknown Source)
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