Error(s) in re-building vignettes:
--- re-building 'Definition.Rnw' using Sweave

Error: processing vignette 'Definition.Rnw' failed with diagnostics:
 chunk 1 (label = curve) 
Error : package or namespace load failed for 'ggplot2' in library.dynam(lib, package, package.lib):
 DLL 'Rcpp' not found: maybe not installed for this architecture?

--- failed re-building 'Definition.Rnw'

--- re-building 'Speed.Rnw' using Sweave
Loading required package: ElemStatLearn
Loading required package: glmnet
Loading required package: Matrix
Loading required package: foreach
Loaded glmnet 2.0-18

Loading required package: microbenchmark
Loading required package: PRROC
Loading required package: WeightedROC
Loading required package: ROCR
Loading required package: gplots

Attaching package: 'gplots'

The following object is masked from 'package:stats':

    lowess

Loading required package: pROC
Error: package or namespace load failed for 'pROC' in library.dynam(lib, package, package.lib):
 DLL 'Rcpp' not found: maybe not installed for this architecture?
Loading required package: ggplot2
Error: package or namespace load failed for 'ggplot2' in library.dynam(lib, package, package.lib):
 DLL 'Rcpp' not found: maybe not installed for this architecture?
Loading required package: pROC
Error: package or namespace load failed for 'pROC' in library.dynam(lib, package, package.lib):
 DLL 'Rcpp' not found: maybe not installed for this architecture?
Loading required package: pROC
Error: package or namespace load failed for 'pROC' in library.dynam(lib, package, package.lib):
 DLL 'Rcpp' not found: maybe not installed for this architecture?
Loading required package: pROC
Error: package or namespace load failed for 'pROC' in library.dynam(lib, package, package.lib):
 DLL 'Rcpp' not found: maybe not installed for this architecture?
Loading required package: pROC
Error: package or namespace load failed for 'pROC' in library.dynam(lib, package, package.lib):
 DLL 'Rcpp' not found: maybe not installed for this architecture?
Loading required package: pROC
Error: package or namespace load failed for 'pROC' in library.dynam(lib, package, package.lib):
 DLL 'Rcpp' not found: maybe not installed for this architecture?
Loading required package: pROC
Error: package or namespace load failed for 'pROC' in library.dynam(lib, package, package.lib):
 DLL 'Rcpp' not found: maybe not installed for this architecture?
Loading required package: pROC
Error: package or namespace load failed for 'pROC' in library.dynam(lib, package, package.lib):
 DLL 'Rcpp' not found: maybe not installed for this architecture?
Loading required package: pROC
Error: package or namespace load failed for 'pROC' in library.dynam(lib, package, package.lib):
 DLL 'Rcpp' not found: maybe not installed for this architecture?
Loading required package: pROC
Error: package or namespace load failed for 'pROC' in library.dynam(lib, package, package.lib):
 DLL 'Rcpp' not found: maybe not installed for this architecture?
Loading required package: ggplot2
Error: package or namespace load failed for 'ggplot2' in library.dynam(lib, package, package.lib):
 DLL 'Rcpp' not found: maybe not installed for this architecture?
--- finished re-building 'Speed.Rnw'

SUMMARY: processing the following file failed:
  'Definition.Rnw'

Error: Vignette re-building failed.
Execution halted