title: R LANGUAGE: Registered S3 method overwritten by 'data.table':
body: <p>I'm using 3.6.3 R version. while compiling R.mrd i got this errors:
  <code>Registered S3 method overwritten by 'data.table':
    method           from
    print.data.table<br>
  Registered S3 method overwritten by 'htmlwidgets':
    method           from<br>
    print.htmlwidget tools:rstudio
  Registered S3 method overwritten by 'dplyr':
    method           from
    print.rowwise_df 
  le package �flexdashboard� a �t� compil� avec la version R 3.6.3Registered S3 methods overwritten by 'htmltools':
    method               from<br>
    print.html           tools:rstudio
    print.shiny.tag      tools:rstudio
    print.shiny.tag.list tools:rstudio</code>
  Therefore plots didn't appear in a dashboard.
  Any help please</p>