Error in re-building vignettes:
  ...
Warning in engine$weave(file, quiet = quiet, encoding = enc) :
  Pandoc (>= 1.12.3) and/or pandoc-citeproc not available. Falling back to R Markdown v1.
0%   10   20   30   40   50   60   70   80   90   100%
|----|----|----|----|----|----|----|----|----|----|
**************************************************|
Warning in system.time(out <- .Call("NNLM_nnmf", A, as.integer(k), init.mask$Wi,  :
  Target tolerance not reached. Try a larger max.iter.
0%   10   20   30   40   50   60   70   80   90   100%
|----|----|----|----|----|----|----|----|----|----|
**************************************************|
Warning in system.time(out <- .Call("NNLM_nnmf", A, as.integer(k), init.mask$Wi,  :
  Target tolerance not reached. Try a larger max.iter.
0%   10   20   30   40   50   60   70   80   90   100%
|----|----|----|----|----|----|----|----|----|----|
**************************************************|
Warning in system.time(out <- .Call("NNLM_nnmf", A, as.integer(k), init.mask$Wi,  :
  Target tolerance not reached. Try a larger max.iter.
0%   10   20   30   40   50   60   70   80   90   100%
|----|----|----|----|----|----|----|----|----|----|
**************************************************|
Warning in system.time(out <- .Call("NNLM_nnmf", A, as.integer(k), init.mask$Wi,  :
  Target tolerance not reached. Try a larger max.iter.
0%   10   20   30   40   50   60   70   80   90   100%
|----|----|----|----|----|----|----|----|----|----|
**************************************************|
Warning in system.time(out <- .Call("NNLM_nnmf", A, as.integer(k), init.mask$Wi,  :
  Target tolerance not reached. Try a larger max.iter.
0%   10   20   30   40   50   60   70   80   90   100%
|----|----|----|----|----|----|----|----|----|----|
**************************************************|
trying URL 'http://cran.stat.sfu.ca/src/contrib/ISOpureR_1.1.0.tar.gz'
Content type 'application/x-gzip' length 1631887 bytes (1.6 MB)
==================================================
downloaded 1.6 MB

* installing *source* package ‘ISOpureR’ ...
** package ‘ISOpureR’ successfully unpacked and MD5 sums checked
** libs
CC -library=stlport4 -I/home/ripley/R/cc/include -DNDEBUG  -I"/home/ripley/R/Lib32/Rcpp/include" -I"/home/ripley/R/Lib32/RcppEigen/include" -I/usr/local/include   -KPIC  -O -xlibmil -xtarget=native -nofstore  -c RcppExports.cpp -o RcppExports.o
"/home/ripley/R/Lib32/Rcpp/include/Rcpp/internal/r_coerce.h", line 219: Error: The function "snprintf" must have a prototype.
"/home/ripley/R/Lib32/Rcpp/include/Rcpp/internal/r_coerce.h", line 220: Error: The function "snprintf" must have a prototype.
"/home/ripley/R/Lib32/Rcpp/include/Rcpp/internal/r_coerce.h", line 221: Error: The function "snprintf" must have a prototype.
"/home/ripley/R/Lib32/Rcpp/include/Rcpp/internal/r_coerce.h", line 241: Error: The function "snprintf" must have a prototype.
"/home/ripley/R/Lib32/Rcpp/include/Rcpp/internal/r_coerce.h", line 249: Error: The function "snprintf" must have a prototype.
"/home/ripley/R/Lib32/RcppEigen/include/Eigen/src/SparseCore/SparseCwiseUnaryOp.h", line 49: Error: Cannot define member of undefined specialization "unary_evaluator<CwiseUnaryOp<UnaryOp, ArgType>, Eigen::internal::IteratorBased>".
"/home/ripley/R/Lib32/RcppEigen/include/Eigen/src/SparseCore/SparseCwiseUnaryOp.h", line 99: Error: Cannot define member of undefined specialization "unary_evaluator<CwiseUnaryView<ViewOp, ArgType>, Eigen::internal::IteratorBased>".
"/home/ripley/R/Lib32/RcppEigen/include/Eigen/src/SparseCore/SparseBlock.h", line 503: Error: Cannot define member of undefined specialization "unary_evaluator<Block<ArgType, BlockRows, BlockCols, InnerPanel>, Eigen::internal::IteratorBased>".
"/home/ripley/R/Lib32/RcppEigen/include/Eigen/src/SparseCore/SparseBlock.h", line 529: Error: Cannot define member of undefined specialization "unary_evaluator<Block<ArgType, BlockRows, BlockCols, InnerPanel>, Eigen::internal::IteratorBased>".
"/home/ripley/R/Lib32/Rcpp/include/Rcpp/date_datetime/Datetime.h", line 83: Error: snprintf is not defined.
10 Error(s) detected.
*** Error code 2
make: Fatal error: Command failed for target `RcppExports.o'
Current working directory /tmp/Rtmp8_ayGy/R.INSTALL310312334233/ISOpureR/src
ERROR: compilation failed for package ‘ISOpureR’
* removing ‘/home/ripley/R/Lib32/ISOpureR’

The downloaded source packages are in
	'/tmp/Rtmp82aiCR/downloaded_packages'
Quitting from lines 475-495 (Fast-And-Versatile-NMF.Rmd) 
Error: processing vignette 'Fast-And-Versatile-NMF.Rmd' failed with diagnostics:
there is no package called 'ISOpureR'
Execution halted