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
There was an error in creating a Selector for method step in Class swarm.analysis.EZDistributionImpl.
0 r6 e# d' f- o3 Jswarm.analysis.EZDistributionImpl.step returns null
The process will be terminated.
% P$ l$ T6 L* y- D2 L3 [( \, y- m(Tcl -eval couldn't read file "F:Swarm-2.2-java/lib/tcl8.4//word.tcl": no such file or directory
% c4 w& m# P, X5 d4 Y    while executing
"source F:\Swarm-2.2-java/lib/tcl8.4//word.tcl"
1 @/ H9 x/ y$ F" Y$ m& N# t$ m. B; R0 Pwhile evaluating: source F:\Swarm-2.2-java/lib/tcl8.4//word.tcl
*** event raised for warning: WarningMessage
' G9 A; z' W% _; v- r*** function: _i_ProbeMap__addProbe_(), file: /src/swarm/src/objectbase/ProbeMap.m, line: 606
Attempt to add null probe
" d- G1 H1 [: E3 Z" O) o# i*** execution continuing...
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~