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

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: descrDissTrunks
> ### Title: Description of the dissimilarities between women's trunks
> ### Aliases: descrDissTrunks
> ### Keywords: datasets
> 
> ### ** Examples
> 
> #Database:
> #As a toy example, only the first 25 individuals are used.
> X <- descrDissTrunks[1:25,]
> X <- as.matrix(X) 
> 
> #Computation of archetypes and archetypoids:
> #For reproducing results, seed for randomness:
> #suppressWarnings(RNGversion("3.5.0"))
> #set.seed(2010) 
> #Run archetype algorithm repeatedly from 1 to numArch archetypes:
> #This is a toy example. In other situation, choose numArch=10 and numRep=20.
> numArch <- 5 ; nrep <- 2
> lass <- stepArchetypesRawData(data = X, numArch = 1:numArch, numRep = nrep, verbose = FALSE)
Warning in archetypes(data, k = numArch[i], family = archetypesFamily("original",  :
  k=2: zs > maxKappa
Warning in archetypes(data, k = numArch[i], family = archetypesFamily("original",  :
  k=2: zs > maxKappa
Warning in archetypes(data, k = numArch[i], family = archetypesFamily("original",  :
  k=3: zs > maxKappa
Warning in archetypes(data, k = numArch[i], family = archetypesFamily("original",  :
  k=3: zs > maxKappa
Warning in archetypes(data, k = numArch[i], family = archetypesFamily("original",  :
  k=4: zs > maxKappa
Warning in archetypes(data, k = numArch[i], family = archetypesFamily("original",  :
  k=4: zs > maxKappa
Warning in archetypes(data, k = numArch[i], family = archetypesFamily("original",  :
  k=5: zs > maxKappa
Warning in archetypes(data, k = numArch[i], family = archetypesFamily("original",  :
  k=5: Error in qr.solve(alphas %*% t(alphas)): singular matrix 'a' in solve

> #To understand the warning messages, see the vignette of the
> #archetypes package.  
> 
> #screeplot(lass)
> 
> numArchoid <- 3
> res_archoids_ns <- archetypoids(numArchoid, X, huge = 200, step = FALSE, ArchObj = lass, 
+                                 nearest = "cand_ns", sequ = TRUE)
Error in get.knnx(data = train, query = test, k = k, algorithm) : 
  DLL requires the use of native symbols
Calls: archetypoids -> knn -> get.knnx
Execution halted