Error in re-building vignettes:
  ...
 Linking to sp version: 1.2-7 
Warning in FNcheck(OUTPUTfn = OUTPUTfn, folder = folder, ERROR.NAME = "OUTPUTfn") :
  OUTPUTfn VModelMapEx1a_map does not include an extension, using default extension of '.img'. New OUTPUTfn is VModelMapEx1a_map.img
Warning in FNcheck(OUTPUTfn = OUTPUTfn, folder = folder, ERROR.NAME = "OUTPUTfn") :
  OUTPUTfn VModelMapEx1b_map does not include an extension, using default extension of '.img'. New OUTPUTfn is VModelMapEx1b_map.img
Warning in FNcheck(OUTPUTfn = OUTPUTfn, folder = folder, ERROR.NAME = "OUTPUTfn") :
  OUTPUTfn VModelMapEx2a_map does not include an extension, using default extension of '.img'. New OUTPUTfn is VModelMapEx2a_map.img
Warning in FNcheck(OUTPUTfn = OUTPUTfn, folder = folder, ERROR.NAME = "OUTPUTfn") :
  OUTPUTfn VModelMapEx2b_map does not include an extension, using default extension of '.img'. New OUTPUTfn is VModelMapEx2b_map.img
Warning in FNcheck(OUTPUTfn = OUTPUTfn, folder = folder, ERROR.NAME = "OUTPUTfn") :
  OUTPUTfn VModelMapEx3_map does not include an extension, using default extension of '.img'. New OUTPUTfn is VModelMapEx3_map.img
Warning in model.SGB(qdata = qdata, predList = predList, response.name = response.name,  :
  ModelMap currently uses OOB estimation to determine optimal number of trees in SGB model when calling 'gbm.perf' in the gbm package however OOB generally underestimates the optimal number of iterations although predictive performance is reasonably competitive however using cv.folds>0 when calling gbm usually results in improved predictive performance but is not yet supported in ModelMap
Warning in model.SGB(qdata = qdata, predList = predList, response.name = response.name,  :
  ModelMap currently uses OOB estimation to determine optimal number of trees in SGB model when calling 'gbm.perf' in the gbm package however OOB generally underestimates the optimal number of iterations although predictive performance is reasonably competitive however using cv.folds>0 when calling gbm usually results in improved predictive performance but is not yet supported in ModelMap
Warning in FNcheck(OUTPUTfn = OUTPUTfn, folder = folder, ERROR.NAME = "OUTPUTfn") :
  OUTPUTfn VModelMapEx4a_map does not include an extension, using default extension of '.img'. New OUTPUTfn is VModelMapEx4a_map.img
Warning in FNcheck(OUTPUTfn = OUTPUTfn, folder = folder, ERROR.NAME = "OUTPUTfn") :
  OUTPUTfn VModelMapEx4b_map does not include an extension, using default extension of '.img'. New OUTPUTfn is VModelMapEx4b_map.img
Warning in file.remove("Rplots.pdf") :
  cannot remove file 'Rplots.pdf', reason 'No such file or directory'
Warning in FNcheck(OUTPUTfn = OUTPUTfn, folder = folder, ERROR.NAME = "OUTPUTfn") :
  OUTPUTfn VQuantile_QRF_Pinyon_map does not include an extension, using default extension of '.img'. New OUTPUTfn is VQuantile_QRF_Pinyon_map.img

Execution halted