Error(s) in re-building vignettes:
--- re-building ‘LIM.Rnw’ using Sweave
--- finished re-building ‘LIM.Rnw’

--- re-building ‘LIMecoli.Rnw’ using Sweave
Loading required package: limSolve
Loading required package: diagram
Loading required package: shape
Warning in lsei(E = E, F = F, G = G, H = H) :
  LSEI error: inequalities contradictory
Warning in lsei(A = A, B = B, E = E, F = F, G = G, H = H) :
  LSEI error: inequalities contradictory
Timing stopped at: 0.003 0 0.004

Error: processing vignette 'LIMecoli.Rnw' failed with diagnostics:
 chunk 9 
Error in xsample(A = A, B = B, E = E, F = F, G = G, H = H, ...) : 
  no particular solution found;incompatible constraints

--- failed re-building ‘LIMecoli.Rnw’

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

Error: Vignette re-building failed.
Execution halted

Maintainer: ‘Francesco Bartolucci <bart@stat.unipg.it>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = "Francesco",
                      family = "Bartolucci",
                      role = c("aut", "cre"),
                      email = "bart@stat.unipg.it"),
               person(given = c("Silvia", "Bacci", "-", "University", "of"),
                      family = "Perugia",
                      role = "aut",
                      comment = "IT"))
as necessary.
Maintainer: ‘Francesco Bartolucci <bart@stat.unipg.it>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = "Francesco",
                      family = "Bartolucci",
                      role = c("aut", "cre"),
                      email = "bart@stat.unipg.it"),
               person(given = c("Silvia", "Bacci", "-", "University", "of"),
                      family = "Perugia",
                      role = "aut",
                      comment = "IT"))
as necessary.

Maintainer: ‘Henrik Singmann <singmann@gmail.com>’

Found the following URLs which should use \doi (with the DOI name only):
  File ‘fit_mpt.Rd’:
    https://doi.org/10.3758/PBR.15.4.713
Maintainer: ‘Henrik Singmann <singmann@gmail.com>’

Found the following URLs which should use \doi (with the DOI name only):
  File ‘fit_mpt.Rd’:
    https://doi.org/10.3758/PBR.15.4.713
'LazyData' is specified without a 'data' directory
'LazyData' is specified without a 'data' directory
'LazyData' is specified without a 'data' directory