Package required but not available: ‘WGCNA’

See section ‘The DESCRIPTION file’ in the ‘Writing R Extensions’
manual.
Namespace in Imports field not imported from: ‘fmsb’
  All declared Imports should be used.
Namespace in Imports field not imported from: ‘fmsb’
  All declared Imports should be used.
Error(s) in re-building vignettes:
--- re-building 'MACP_tutorial.Rmd' using rmarkdown

Quitting from lines  at lines 596-604 [unnamed-chunk-24] (MACP_tutorial.Rmd)
Error: processing vignette 'MACP_tutorial.Rmd' failed with diagnostics:
Failed to connect to biit.cs.ut.ee port 80 after 42049 ms: Couldn't connect to server
--- failed re-building 'MACP_tutorial.Rmd'

SUMMARY: processing the following file failed:
  'MACP_tutorial.Rmd'

Error: Vignette re-building failed.
Execution halted
Package suggested but not available for checking: ‘orthogene’
Package unavailable to check Rd xrefs: ‘orthogene’
Package suggested but not available for checking: ‘orthogene’
Package unavailable to check Rd xrefs: ‘orthogene’