error while creating displays

panllrose

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3 g- X/ ]9 ^: f: }& r, a1 n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：

1 m; ]0 c. b* g5 p* Y4 H2012/06/13 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)
3 s8 A1 p4 [6 M" q! ?        at repast.simphony.visualization.engine.DisplayProducer.createDisplay2D(DisplayProducer.java:187)
        at repast.simphony.visualization.engine.DisplayProducer.createDisplay(DisplayProducer.java:88)
6 G' A9 E* k% n, m0 O/ {) S        at repast.simphony.visualization.engine.DisplayComponentControllerAction.runInitialize(DisplayComponentControllerAction.java:90)
        at repast.simphony.engine.controller.DefaultController$2.visit(DefaultController.java:171)
* r& U, h5 m, ]# u0 T4 ]9 {8 q        at repast.simphony.engine.controller.DefaultController$2.visit(DefaultController.java:1)
        at repast.simphony.util.collections.NaryTree.preOrderTraverals(NaryTree.java:287)
        at repast.simphony.util.collections.NaryTree.preOrderTraverals(NaryTree.java:290)
        at repast.simphony.util.collections.NaryTree.preOrderTraverals(NaryTree.java:290)
+ k0 V- Z; v4 L        at repast.simphony.util.collections.NaryTree.preOrderTraversal(NaryTree.java:283)
        at repast.simphony.engine.controller.DefaultController.runInitialize(DefaultController.java:169)
+ A$ `% x8 n9 ~8 l( z  y4 Y4 c* Q8 V: o        at repast.simphony.engine.controller.DefaultController.runInitialize(DefaultController.java:324)
  O! f( ?# o8 M        at repast.simphony.ui.RSApplication.initSim(RSApplication.java:134)
        at repast.simphony.ui.action.InitRun.actionPerformed(InitRun.java:17)
        at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
* S, \2 _! i2 V$ V. R, M- n# ^        at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
        at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
        at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
        at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
+ N1 E7 R8 i+ R+ V        at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
        at java.awt.Component.processMouseEvent(Unknown Source)
6 p3 [, X, M, J4 B8 @3 }9 o" ?        at javax.swing.JComponent.processMouseEvent(Unknown Source)
/ ~$ q2 w! |* {        at java.awt.Component.processEvent(Unknown Source)
" \3 p. M. a! ^0 I! C5 y        at java.awt.Container.processEvent(Unknown Source)
        at java.awt.Component.dispatchEventImpl(Unknown Source)
- y$ H# K# l8 v+ Y2 o' J* P+ `        at java.awt.Container.dispatchEventImpl(Unknown Source)
        at java.awt.Component.dispatchEvent(Unknown Source)
        at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
/ d1 S% c' `' Q! L8 E. n        at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
$ L% Y2 o" G3 B" Y1 ?9 n, {        at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
( C2 l, ?1 U$ l& D        at java.awt.Container.dispatchEventImpl(Unknown Source)
7 A6 x1 g, ]# l* {, K0 k, ^- Q+ X" A        at java.awt.Window.dispatchEventImpl(Unknown Source)
        at java.awt.Component.dispatchEvent(Unknown Source)
, V! U: r1 ]3 M' u) `        at java.awt.EventQueue.dispatchEvent(Unknown Source)
1 Y2 M& |/ H9 |5 x        at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
! J# L; {& Y6 s, n5 m        at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
8 y. j2 b' L& m1 I0 Y, I; `        at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
" A1 F" H, c% B9 `7 w, T2 b        at java.awt.EventDispatchThread.run(Unknown Source)
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