Package suggested but not available for checking: ‘clipper’
Error(s) in re-building vignettes:
--- re-building ‘simPATHy.Rmd’ using rmarkdown
Quitting from lines 263-269 (simPATHy.Rmd) 
Error: processing vignette 'simPATHy.Rmd' failed with diagnostics:
there is no package called 'clipper'
--- failed re-building ‘simPATHy.Rmd’

SUMMARY: processing the following file failed:
  ‘simPATHy.Rmd’

Error: Vignette re-building failed.
Execution halted
Package required but not available: 'qpgraph'

Package suggested but not available for checking: 'clipper'

See section 'The DESCRIPTION file' in the 'Writing R Extensions'
manual.
Packages required but not available: 'gRbase', 'qpgraph'

Package suggested but not available for checking: ‘clipper’

See section ‘The DESCRIPTION file’ in the ‘Writing R Extensions’
manual.
Package required but not available: ‘qpgraph’

Package suggested but not available for checking: ‘clipper’

See section ‘The DESCRIPTION file’ in the ‘Writing R Extensions’
manual.
Package required but not available: ‘qpgraph’

Package suggested but not available for checking: ‘clipper’

See section ‘The DESCRIPTION file’ in the ‘Writing R Extensions’
manual.