error while creating displays

panllrose

0 F3 y# n$ X& u, Z4 W3 Z; e( U
; J% T. a, O" x1 E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 w/ S) [  J2 [( ]5 S2012/06/13 09:59:23,312: Error while creating displays
java.lang.RuntimeException: Projection 'ContinuousSpace' not found.
' o; Y. X2 i+ x$ N. M        at repast.simphony.visualization.engine.DisplayProducer.createLayout(DisplayProducer.java:540)
3 D" d! |+ F+ A/ r! `! @        at repast.simphony.visualization.engine.DisplayProducer.createDisplay2D(DisplayProducer.java:187)
6 J2 t# U: N! ^: ~: b        at repast.simphony.visualization.engine.DisplayProducer.createDisplay(DisplayProducer.java:88)
# W8 Z# t: m; ~# c5 r) F        at repast.simphony.visualization.engine.DisplayComponentControllerAction.runInitialize(DisplayComponentControllerAction.java:90)
8 D* D1 p6 P) G: x' \7 B" J+ Q# x% o        at repast.simphony.engine.controller.DefaultController$2.visit(DefaultController.java:171)
        at repast.simphony.engine.controller.DefaultController$2.visit(DefaultController.java:1)
        at repast.simphony.util.collections.NaryTree.preOrderTraverals(NaryTree.java:287)
        at repast.simphony.util.collections.NaryTree.preOrderTraverals(NaryTree.java:290)
* J  h) L1 `, q& A, R        at repast.simphony.util.collections.NaryTree.preOrderTraverals(NaryTree.java:290)
, ~# @& ]- i  r- ]        at repast.simphony.util.collections.NaryTree.preOrderTraversal(NaryTree.java:283)
6 P& I" y# t8 J& n' W        at repast.simphony.engine.controller.DefaultController.runInitialize(DefaultController.java:169)
& P/ w. X6 ?2 s$ J. z' D        at repast.simphony.engine.controller.DefaultController.runInitialize(DefaultController.java:324)
        at repast.simphony.ui.RSApplication.initSim(RSApplication.java:134)
+ x' J6 d* A( r        at repast.simphony.ui.action.InitRun.actionPerformed(InitRun.java:17)
+ E# |& h: b. s" K, }3 H        at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
* [4 t3 E7 ~; k: H1 r        at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
5 P( I1 L1 \8 t& ^- W        at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
        at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
- I& w3 J/ c  S. k$ W        at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
5 K& c) _- w9 O" Q. [        at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
$ C! d! e* n) ^9 h        at java.awt.Component.processMouseEvent(Unknown Source)
        at javax.swing.JComponent.processMouseEvent(Unknown Source)
7 u( n- c: }1 O  H- S        at java.awt.Component.processEvent(Unknown Source)
* Z0 B4 m% C. w" {! J2 I( j, c6 M$ J        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(Unknown Source)
* c+ k# R+ p! J; P# H  \        at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
* L1 q* n9 K/ F) ]        at java.awt.Container.dispatchEventImpl(Unknown Source)
2 z8 g) M, v6 X        at java.awt.Window.dispatchEventImpl(Unknown Source)
        at java.awt.Component.dispatchEvent(Unknown Source)
        at java.awt.EventQueue.dispatchEvent(Unknown Source)
* z& p; t8 v. J. O# G2 O& e5 `        at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
% q( i0 ]. z5 z+ R$ Z        at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
' |$ W  d1 c% d, o; g4 s  K        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.run(Unknown Source)