求问关于Swarm产生柱状图的问题 多谢大家了！！

mushroom89

各位好，我想请教一下，我想产生一个柱状图，但是在buildActions（）好像selector那有问题，说
; N& U( M8 K- A2 y2 t& C# ~There was an error in creating a Selector for method step in Class swarm.analysis.EZDistributionImpl.
+ ?  a$ k( T/ v, N# @9 ]. Mswarm.analysis.EZDistributionImpl.step returns null
The process will be terminated.
(Tcl -eval couldn't read file "F:Swarm-2.2-java/lib/tcl8.4//word.tcl": no such file or directory
    while executing
"source F:\Swarm-2.2-java/lib/tcl8.4//word.tcl"
- D' Q: ^; d) J, r, j( `4 mwhile evaluating: source F:\Swarm-2.2-java/lib/tcl8.4//word.tcl
' {; \" \, E( I! _- m% M*** event raised for warning: WarningMessage
*** function: _i_ProbeMap__addProbe_(), file: /src/swarm/src/objectbase/ProbeMap.m, line: 606
2 h2 K/ ~0 \6 bAttempt to add null probe
( ]" b! y5 h2 K*** execution continuing...
0 Y0 K3 t! h/ V/ L$ k请问第一个参数应该是什么呢 我设的是ezdist（一个EZDistribution object），
( Z. ?/ p+ ?6 p6 V+ _- V请问是怎么回事呢？多谢大家了~