Error(s) in re-building vignettes:
--- re-building ‘how_simple_is_data_analysis_with_shinyr.Rmd’ using knitr
Failed to parse YAML:

title: "shinyr: Data Insights Through Inbuilt R Shiny App"
output: rmarkdown::html_vignette
%\VignetteEngine{knitr::knitr}
 ^~~~~~
%\VignetteIndexEntry{shinyr: Data Insights Through Inbuilt R Shiny App}
%\usepackage[utf8]{inputenc}

Error: processing vignette 'how_simple_is_data_analysis_with_shinyr.Rmd' failed with diagnostics:
Scanner error: while scanning a directive at line 3, column 1 could not find expected directive name at line 3, column 2

--- failed re-building ‘how_simple_is_data_analysis_with_shinyr.Rmd’

--- re-building ‘shiny_app.Rmd’ using knitr
Failed to parse YAML:

title: "shinyr - Basic Example"
runtime: shiny
output: rmarkdown::html_vignette
%\VignetteEngine{knitr::knitr}
 ^~~~~~
%\VignetteIndexEntry{shinyr - Basic Example}
%\usepackage[utf8]{inputenc}

Error: processing vignette 'shiny_app.Rmd' failed with diagnostics:
Scanner error: while scanning a directive at line 4, column 1 could not find expected directive name at line 4, column 2

--- failed re-building ‘shiny_app.Rmd’

--- re-building ‘shinyr_function_usage.Rmd’ using knitr
** Processing: figure/unnamed-chunk-8-1.png
504x504 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 42507 bytes
Input file size = 42645 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 29868
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5
                               
Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 29868

Output IDAT size = 29868 bytes (12639 bytes decrease)
Output file size = 29946 bytes (12699 bytes = 29.78% decrease)

** Processing: figure/unnamed-chunk-11-1.png
504x504 pixels, 3x8 bits/pixel, RGB
Input IDAT size = 79024 bytes
Input file size = 79210 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 67536
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5
                               
Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 67536

Output IDAT size = 67536 bytes (11488 bytes decrease)
Output file size = 67614 bytes (11596 bytes = 14.64% decrease)

Failed to parse YAML:

title: shinyr - an R package to build analytics dashboard automatically
output: rmarkdown::html_vignette
%\VignetteEngine{knitr::knitr}
 ^~~~~~
%\VignetteIndexEntry{shinyr - an R package to build analytics dashboard automatically}
%\usepackage[utf8]{inputenc}

Error: processing vignette 'shinyr_function_usage.Rmd' failed with diagnostics:
Scanner error: while scanning a directive at line 3, column 1 could not find expected directive name at line 3, column 2

--- failed re-building ‘shinyr_function_usage.Rmd’

SUMMARY: processing the following files failed:
  ‘how_simple_is_data_analysis_with_shinyr.Rmd’ ‘shiny_app.Rmd’
  ‘shinyr_function_usage.Rmd’

Error: Vignette re-building failed.
Execution halted