R help - Feb 2014 - MatchIt package

Hello,
I get the following error when running the example in the MatchIt package,
demo(analysis)

> ate.all <- c(s.out1$qi$att.ev, -s.out2$qi$att.ev)Error in
-s.out2$qi$att.ev : invalid argument to unary operatorIn addition: Warning
messages:1: In setx.default(z.out1, data = match.data(m.out1,
"treat"), fn = NULL,  :
  "cond" is not currently supported by this version of Zelig2: In
setx.default(z.out2, data = match.data(m.out1, "control"), fn = NULL,
:
  "cond" is not currently supported by this version of Zelig

Appreciate your help - kindly respond to my private email.

thanks Marwan khawaja

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