Package check result: ERROR

Check: examples, Result: ERROR
  Running examples in ‘FLSSS-Ex.R’ failed
  The error most likely occurred in:
  
  > base::assign(".ptime", proc.time(), pos = "CheckExEnv")
  > ### Name: arbFLSSS
  > ### Title: Multidimensional exact subset sum in arbitrary precision and
  > ###   magnitude
  > ### Aliases: arbFLSSS
  > 
  > ### ** Examples
  > 
  > set.seed(1)
  > N = 200L # Superset size.
  > len = 20L # Subset size.
  > V = sapply(1:N, function(i) # Generate a set where every "number" has at most
  +   # 100 digits.
  + {
  +   a = 0:9
  +   left = sample(a, size = sample(50, 1), replace = TRUE)
  +   right = sample(a, size = sample(50, 1), replace = TRUE)
  +   x = paste0(paste0(left, collapse = ""), ".", paste0(right, collapse = ""))
  +   if (runif(1) < 0.5) x = paste0("-", x) # Randomly add a negative sign.
  +   x
  + })
  > str(V)
   chr [1:200] "-6016.1204495968448844198032599533986587867596295" ...
  > 
  > 
  > sol = sample(N, len) # Make a solution.
  > target = FLSSS::addNumStrings(V[sol]) # An unexposed helper function.
  > 
  > 
  > system.time({
  +   rst = FLSSS::arbFLSSS(
  +     len, V = as.matrix(V), target, solutionNeed = 1, maxCore = 2,
  +     tlimit = 10, ksumK = 0, verbose = TRUE)
  + })
  Transform string input to bit streams and create flsss objects to mine..
  
  Examples with CPU (user + system) or elapsed time > 5s
          user system elapsed
  FLSSS 276.76 12.184 289.029

Check: for detritus in the temp directory, Result: NOTE
  Found the following files/directories:
    ‘vgdb-pipe-from-vgdb-to-3499151-by-hornik-on-???’
    ‘vgdb-pipe-shared-mem-vgdb-3499151-by-hornik-on-???’
    ‘vgdb-pipe-to-vgdb-from-3499151-by-hornik-on-???’