Package suggested but not available for checking: 'Vdgraph'
Error(s) in re-building vignettes:
  ...
--- re-building 'vdg.Rnw' using knitr
Quitting from lines 239-245 (vdg.Rnw) 
Error: processing vignette 'vdg.Rnw' failed with diagnostics:
there is no package called 'Vdgraph'
--- failed re-building 'vdg.Rnw'

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

Error: Vignette re-building failed.
Execution halted
Package suggested but not available for checking: ‘Vdgraph’
Error(s) in re-building vignettes:
  ...
--- re-building ‘vdg.Rnw’ using knitr
Quitting from lines 239-245 (vdg.Rnw) 
Error: processing vignette ‘vdg.Rnw’ failed with diagnostics:
there is no package called 'Vdgraph'
--- failed re-building ‘vdg.Rnw’

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

Error: Vignette re-building failed.
Execution halted
Package suggested but not available for checking: ‘Vdgraph’
File ‘vdg/libs/vdg.so’:
  Found no calls to: ‘R_registerRoutines’, ‘R_useDynamicSymbols’

It is good practice to register native routines and to disable symbol
search.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual.
Error(s) in re-building vignettes:
--- re-building ‘vdg.Rnw’ using knitr
Quitting from lines 239-245 (vdg.Rnw) 
Error: processing vignette 'vdg.Rnw' failed with diagnostics:
there is no package called 'Vdgraph'
--- failed re-building ‘vdg.Rnw’

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

Error: Vignette re-building failed.
Execution halted
Package suggested but not available for checking: ‘Vdgraph’
File ‘vdg/libs/vdg.so’:
  Found no calls to: ‘R_registerRoutines’, ‘R_useDynamicSymbols’

It is good practice to register native routines and to disable symbol
search.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual.
Error(s) in re-building vignettes:
--- re-building ‘vdg.Rnw’ using knitr
Quitting from lines 239-245 (vdg.Rnw) 
Error: processing vignette 'vdg.Rnw' failed with diagnostics:
there is no package called 'Vdgraph'
--- failed re-building ‘vdg.Rnw’

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

Error: Vignette re-building failed.
Execution halted
Package suggested but not available for checking: ‘Vdgraph’
Error(s) in re-building vignettes:
  ...
--- re-building ‘vdg.Rnw’ using knitr
Quitting from lines 239-245 (vdg.Rnw) 
Error: processing vignette ‘vdg.Rnw’ failed with diagnostics:
there is no package called 'Vdgraph'
--- failed re-building ‘vdg.Rnw’

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

Error: Vignette re-building failed.
Execution halted
Package suggested but not available for checking: ‘Vdgraph’
Error(s) in re-building vignettes:
  ...
--- re-building ‘vdg.Rnw’ using knitr
Quitting from lines 239-245 (vdg.Rnw) 
Error: processing vignette ‘vdg.Rnw’ failed with diagnostics:
there is no package called 'Vdgraph'
--- failed re-building ‘vdg.Rnw’

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

Error: Vignette re-building failed.
Execution halted