Error(s) in re-building vignettes:
  ...
--- re-building ‘MBHdesign.Rnw’ using knitr

Version 4.1.0 of the spsurvey package was loaded successfully.

No study.area defined. Using a rectangle based on the extreme locations in potential.sites
Adjusting Inclusion Probabilities for Transect Pattern.
Iteration : Agreement-Criterion
1 : Inf
2 : 0.2662
3 : 0.1779
4 : 0.1336
5 : 0.1098
6 : 0.0947
7 : 0.0836
8 : 0.075
9 : 0.0686
10 : 0.0637
11 : 0.0603
12 : 0.0578
13 : 0.0558
14 : 0.054
15 : 0.0523
16 : 0.0506
17 : 0.0495
18 : 0.0483
19 : 0.0473
20 : 0.0464
21 : 0.0455
22 : 0.0446
23 : 0.0439
24 : 0.0432
25 : 0.0426
Loading required package: spam
Loading required package: dotCall64
Loading required package: grid
Spam version 2.5-1 (2019-12-12) is loaded.
Type 'help( Spam)' or 'demo( spam)' for a short introduction 
and overview of this package.
Help for individual functions is also obtained by adding the
suffix '.spam' to the function name, e.g. 'help( chol.spam)'.

Attaching package: 'spam'

The following objects are masked from 'package:base':

    backsolve, forwardsolve

See https://github.com/NCAR/Fields for
 an extensive vignette, other supplements and source code 
No study.area defined. Using a rectangle based on the extreme locations in potential.sites
No study.area defined. Using a rectangle based on the extreme locations in potential.sites
No inclusion.probs supplied, assuming uniform throughout study.area
Adjusting Inclusion Probabilities for Transect Pattern.
Iteration : Agreement-Criterion
1 : Inf
2 : 0.3086
3 : 0.1948
4 : 0.1501
5 : 0.1269
6 : 0.1126
7 : 0.1018
8 : 0.0936
9 : 0.0872
10 : 0.0824
11 : 0.0785
12 : 0.0753
13 : 0.0727
14 : 0.0705
15 : 0.0687
16 : 0.0671
17 : 0.0657
18 : 0.0645
19 : 0.0639
20 : 0.0625
21 : 0.0638
22 : 0.0618
23 : 0.0685
24 : 0.0686
Error: processing vignette 'MBHdesign.Rnw' failed with diagnostics:
Running 'texi2dvi' on 'MBHdesign.tex' failed.
LaTeX errors:
! Undefined control sequence.
<recently read> \Hy@colorlink 
                              
l.100 \begin{document}
                      
! Undefined control sequence.
\close@pdflink ->\Hy@endcolorlink 
                                  \Hy@VerboseLinkStop \pdfendlink 
l.100 \begin{document}
                      
! Undefined control sequence.
<recently read> \Hy@colorlink 
                              
l.100 \begin{document}
                      
! Undefined control sequence.
\close@pdflink ->\Hy@endcolorlink 
                                  \Hy@VerboseLinkStop \pdfendlink 
l.100 \begin{document}
                      
! Undefined control sequence.
<recently read> \Hy@colorlink 
                              
l.100 \begin{document}
                      
! Undefined control sequence.
\close@pdflink ->\Hy@endcolorlink 
                                  \Hy@VerboseLinkStop \pdfendlink 
l.100 \begin{document}
                      
! Undefined control sequence.
<recently read> \Hy@colorlink 
                              
l.100 \begin{document}
                      
! Undefined control sequence.
\close@pdflink ->\Hy@endcolorlink 
                                  \Hy@VerboseLinkStop \pdfendlink 
l.100 \begin{document}
                      
! Undefined control sequence.
<recently read> \Hy@colorlink 
                              
l.100 \begin{document}
                      
! Undefined control sequence.
\close@pdflink ->\Hy@endcolorlink 
                                  \Hy@VerboseLinkStop \pdfendlink 
l.100 \begin{document}
                      
! Undefined control sequence.
<recently read> \Hy@colorlink 
                              
l.100 \begin{document}
                      
! Undefined control sequence.
\close@pdflink ->\Hy@endcolorlink 
                                  \Hy@VerboseLinkStop \pdfendlink 
l.100 \begin{document}
                      
--- failed re-building ‘MBHdesign.Rnw’

SUMMARY: processing the following file failed:
  ‘MBHdesign.Rnw’

Error: Vignette re-building failed.
Execution halted