Error(s) in re-building vignettes:
--- re-building ‘rlmer.Rnw’ using Sweave
Loading required package: robustlmm
Loading required package: lme4
Loading required package: Matrix
Warning in eval(expr, .GlobalEnv) :
  Current dir: /data/gannet/ripley/R/packages/tests-clang/robustlmm.Rcheck/robustlmm/ has contents: CITATION, DESCRIPTION, INDEX, Meta, NAMESPACE, R, doc, help, html, libs, simulationStudy
Warning in eval(expr, .GlobalEnv) :
  doc dir: /data/gannet/ripley/R/packages/tests-clang/robustlmm.Rcheck/robustlmm/doc has contents: Penicillin.R, ggplot.theme.R, index.html, plots.R, rlmer.R, rlmer.Rnw, rlmer.pdf, simulationStudies.R, simulationStudies.Rnw, simulationStudies.pdf, sleepstudy.R
Warning in eval(expr, .GlobalEnv) :
  Filename: /data/gannet/ripley/R/packages/tests-clang/robustlmm.Rcheck/robustlmm/doc/Penicillin.R
Warning in optwrap(optimizer, devfun, getStart(start, rho$pp), lower = rho$lower,  :
  convergence code -2 from nloptwrap: NLOPT_INVALID_ARGS: Invalid arguments (e.g. lower bounds are bigger than upper bounds, an unknown algorithm was specified, etcetera).
Warning in checkConv(attr(opt, "derivs"), opt$par, ctrl = control$checkConv,  :
  Model failed to converge with max|grad| = 0.957735 (tol = 0.002, component 1)
Warning in optwrap(optimizer, devfun, getStart(start, rho$pp), lower = rho$lower,  :
  convergence code -2 from nloptwrap: NLOPT_INVALID_ARGS: Invalid arguments (e.g. lower bounds are bigger than upper bounds, an unknown algorithm was specified, etcetera).
Warning in checkConv(attr(opt, "derivs"), opt$par, ctrl = control$checkConv,  :
  Model failed to converge with max|grad| = 0.957735 (tol = 0.002, component 1)
Loading required package: ggplot2
Warning in optwrap(optimizer, devfun, getStart(start, rho$pp), lower = rho$lower,  :
  convergence code -2 from nloptwrap: NLOPT_INVALID_ARGS: Invalid arguments (e.g. lower bounds are bigger than upper bounds, an unknown algorithm was specified, etcetera).
Warning in checkConv(attr(opt, "derivs"), opt$par, ctrl = control$checkConv,  :
  Model failed to converge with max|grad| = 1.09789 (tol = 0.002, component 1)
Warning in compare(fmUncontam, fm, rfm, rfm2, rfm3, show.rho.functions = FALSE) :
  Comparison for objects not fitted to the same dataset
Loading required package: reshape2
--- finished re-building ‘rlmer.Rnw’

--- re-building ‘simulationStudies.Rnw’ using Sweave
Loading required package: ggplot2
Loading required package: robustlmm
Loading required package: lme4
Loading required package: Matrix
Warning in optwrap(optimizer, devfun, getStart(start, rho$pp), lower = rho$lower,  :
  convergence code -2 from nloptwrap: NLOPT_INVALID_ARGS: Invalid arguments (e.g. lower bounds are bigger than upper bounds, an unknown algorithm was specified, etcetera).
Warning in checkConv(attr(opt, "derivs"), opt$par, ctrl = control$checkConv,  :
  Model failed to converge with max|grad| = 0.621439 (tol = 0.002, component 1)

Error: processing vignette 'simulationStudies.Rnw' failed with diagnostics:
 chunk 4 (label = source-sensitivity-curves-code) 
Error in stopOnFailingFit(fit, "The processed results differed from the stored results:\n",  : 
  Error calling function 'fitDatasets_lmer'. The processed results differed from the stored results:
Component “sigma”: Mean relative difference: 0.02178941Component “thetas”: Mean relative difference: 0.1724754Component “b”: Mean relative difference: 0.05208771Component “converged”: Mean absolute difference: 2
And some warnings were issued:
list(message = "convergence code -2 from nloptwrap: NLOPT_INVALID_ARGS: Invalid arguments (e.g. lower bounds are bigger than upper bounds, an unknown algorithm was specified, etcetera).", call = optwrap(optimizer, devfun, getStart(start, rho$pp), lower = rho$lower, control = control, adj = FALSE, verbose = verbose, ...))
And some warnings were issued:
list(message = "Model failed to converge with max|grad| = 0.776441 (tol = 0.002, component 1)", call = checkConv(attr(opt, "derivs"), opt$par, ctrl = control$checkConv, lbound = environment(devfun)$lower))

--- failed re-building ‘simulationStudies.Rnw’

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

Error: Vignette re-building failed.
Execution halted