Error(s) in re-building vignettes:
--- re-building ‘user-guide.Rmd’ using rmarkdown
** Processing: /data/gannet/ripley/R/packages/tests-clang/spqdep.Rcheck/vign_test/spqdep/vignettes/user-guide_files/figure-html/unnamed-chunk-5-1.png
288x288 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 28332 bytes
Input file size = 28446 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 20398
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5
                               
Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 20398

Output IDAT size = 20398 bytes (7934 bytes decrease)
Output file size = 20476 bytes (7970 bytes = 28.02% decrease)

** Processing: /data/gannet/ripley/R/packages/tests-clang/spqdep.Rcheck/vign_test/spqdep/vignettes/user-guide_files/figure-html/plot mh-1.png
288x288 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 29738 bytes
Input file size = 29852 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 27111
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5
                               
Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 27111

Output IDAT size = 27111 bytes (2627 bytes decrease)
Output file size = 27189 bytes (2663 bytes = 8.92% decrease)

** Processing: /data/gannet/ripley/R/packages/tests-clang/spqdep.Rcheck/vign_test/spqdep/vignettes/user-guide_files/figure-html/plot mh prune-1.png
288x288 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 28569 bytes
Input file size = 28683 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 25713
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5
                               
Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 25713

Output IDAT size = 25713 bytes (2856 bytes decrease)
Output file size = 25791 bytes (2892 bytes = 10.08% decrease)

** Processing: /data/gannet/ripley/R/packages/tests-clang/spqdep.Rcheck/vign_test/spqdep/vignettes/user-guide_files/figure-html/unnamed-chunk-10-1.png
288x288 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 28071 bytes
Input file size = 28185 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 19756
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5
                               
Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 19756

Output IDAT size = 19756 bytes (8315 bytes decrease)
Output file size = 19834 bytes (8351 bytes = 29.63% decrease)

** Processing: /data/gannet/ripley/R/packages/tests-clang/spqdep.Rcheck/vign_test/spqdep/vignettes/user-guide_files/figure-html/unnamed-chunk-10-2.png
288x288 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 21490 bytes
Input file size = 21592 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 15315
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5
                               
Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 15315

Output IDAT size = 15315 bytes (6175 bytes decrease)
Output file size = 15393 bytes (6199 bytes = 28.71% decrease)


Quitting from user-guide.Rmd:272-279 [unnamed-chunk-11]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
<error/rlang_error>
Error in `UseMethod()`:
! no applicable method for 'units' applied to an object of class "NULL"
---
Backtrace:
    ▆
 1. └─spqdep::Q.test(formula = f1, data = provinces_spain, m = 3, r = 1)
 2.   └─spqdep::m.surround(...)
 3.     └─base::rbind(mdtms, rowds)
 4.       └─units (local) rbind(deparse.level, ...)
 5.         └─base::units(dots[[1]])
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Error: processing vignette 'user-guide.Rmd' failed with diagnostics:
no applicable method for 'units' applied to an object of class "NULL"
--- failed re-building ‘user-guide.Rmd’

SUMMARY: processing the following file failed:
  ‘user-guide.Rmd’

Error: Vignette re-building failed.
Execution halted