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
9 y& o' [, J0 Q8 B( }7 fThere was an error in creating a Selector for method step in Class swarm.analysis.EZDistributionImpl.
4 T& I5 F# ~/ H! w2 z' Hswarm.analysis.EZDistributionImpl.step returns null
The process will be terminated.
+ Y4 T9 ^7 Z3 m! j# S$ F% l/ f(Tcl -eval couldn't read file "F:Swarm-2.2-java/lib/tcl8.4//word.tcl": no such file or directory
5 C  Q, v  b  ]- i* O4 E) }8 e$ P    while executing
% Y) H* H+ b0 F9 Q- N$ E9 E9 l6 ["source F:\Swarm-2.2-java/lib/tcl8.4//word.tcl"
. _+ {/ Z' o0 k; Wwhile evaluating: source F:\Swarm-2.2-java/lib/tcl8.4//word.tcl
*** event raised for warning: WarningMessage
*** function: _i_ProbeMap__addProbe_(), file: /src/swarm/src/objectbase/ProbeMap.m, line: 606
, F9 g4 k# _; D- m) w+ uAttempt to add null probe
: T& F! S" q! `% U2 D6 H. H# O*** execution continuing...
5 a9 S) X7 F; z# m& f  K请问第一个参数应该是什么呢 我设的是ezdist（一个EZDistribution object），
请问是怎么回事呢？多谢大家了~