Error(s) in re-building vignettes:
--- re-building ‘a01_Introduction_to_IncidencePrevalence.Rmd’ using rmarkdown

Quitting from a01_Introduction_to_IncidencePrevalence.Rmd:102-107 [unnamed-chunk-10]
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NULL
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Error: processing vignette 'a01_Introduction_to_IncidencePrevalence.Rmd' failed with diagnostics:
The package "visOmopResults" (>= 1.0.2) is required.
--- failed re-building ‘a01_Introduction_to_IncidencePrevalence.Rmd’

--- re-building ‘a02_Creating_denominator_populations.Rmd’ using rmarkdown
--- finished re-building ‘a02_Creating_denominator_populations.Rmd’

--- re-building ‘a03_Creating_target_denominator_populations.Rmd’ using rmarkdown
--- finished re-building ‘a03_Creating_target_denominator_populations.Rmd’

--- re-building ‘a04_Calculating_prevalence.Rmd’ using rmarkdown

Quitting from a04_Calculating_prevalence.Rmd:75-87 [unnamed-chunk-6]
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NULL
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Error: processing vignette 'a04_Calculating_prevalence.Rmd' failed with diagnostics:
The package "visOmopResults" (>= 1.0.2) is required.
--- failed re-building ‘a04_Calculating_prevalence.Rmd’

--- re-building ‘a05_Calculating_incidence.Rmd’ using rmarkdown

Quitting from a05_Calculating_incidence.Rmd:104-118 [unnamed-chunk-8]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
NULL
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Error: processing vignette 'a05_Calculating_incidence.Rmd' failed with diagnostics:
The package "visOmopResults" (>= 1.0.2) is required.
--- failed re-building ‘a05_Calculating_incidence.Rmd’

--- re-building ‘a06_Working_with_IncidencePrevalence_Results.Rmd’ using rmarkdown
--- finished re-building ‘a06_Working_with_IncidencePrevalence_Results.Rmd’

--- re-building ‘a07_benchmark.Rmd’ using rmarkdown
--- finished re-building ‘a07_benchmark.Rmd’

SUMMARY: processing the following files failed:
  ‘a01_Introduction_to_IncidencePrevalence.Rmd’
  ‘a04_Calculating_prevalence.Rmd’ ‘a05_Calculating_incidence.Rmd’

Error: Vignette re-building failed.
Execution halted