Running examples in ‘partykit-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: HuntingSpiders
> ### Title: Abundance of Hunting Spiders
> ### Aliases: HuntingSpiders
> ### Keywords: datasets
> 
> ### ** Examples
> 
> ## load data
> data("HuntingSpiders", package = "partykit")
> 
> ## fit multivariate tree for 12-dimensional species abundance
> sptree <- ctree(arct.lute + pard.lugu + zora.spin + pard.nigr + pard.pull +
+   aulo.albi + troc.terr + alop.cune + pard.mont + alop.acce + alop.fabr +
+   arct.peri ~ herbs + reft + moss + sand + twigs + water, data = HuntingSpiders,
+   teststat = "max", minsplit = 5)
Warning in doTest(lev, teststat = teststat, pvalue = pvalue, lower = TRUE,  :
  cmvnorm: completion with ERROR > EPS
Warning in doTest(lev, teststat = teststat, pvalue = pvalue, lower = TRUE,  :
  cmvnorm: completion with ERROR > EPS
Warning in doTest(lev, teststat = teststat, pvalue = pvalue, lower = TRUE,  :
  cmvnorm: completion with ERROR > EPS
Warning in doTest(lev, teststat = teststat, pvalue = pvalue, lower = TRUE,  :
  cmvnorm: completion with ERROR > EPS
Warning in doTest(lev, teststat = teststat, pvalue = pvalue, lower = TRUE,  :
  cmvnorm: completion with ERROR > EPS
Warning in doTest(lev, teststat = teststat, pvalue = pvalue, lower = TRUE,  :
  cmvnorm: completion with ERROR > EPS
Warning in doTest(lev, teststat = teststat, pvalue = pvalue, lower = TRUE,  :
  cmvnorm: completion with ERROR > EPS
Warning in doTest(lev, teststat = teststat, pvalue = pvalue, lower = TRUE,  :
  cmvnorm: completion with ERROR > EPS
Warning in doTest(lev, teststat = teststat, pvalue = pvalue, lower = TRUE,  :
  cmvnorm: completion with ERROR > EPS
Warning in doTest(lev, teststat = teststat, pvalue = pvalue, lower = TRUE,  :
  cmvnorm: completion with ERROR > EPS
> plot(sptree, terminal_panel = node_barplot)
Error in unit(1, "strwidth", split) : 
  no string supplied for 'strwidth/height' unit
Calls: plot ... edge_panel -> grid.rect -> rectGrob -> is.unit -> unit
Execution halted