text: user14444: When I execute:
  > FastqCleaner:::launch_fqc()()
  I get the following output
  Listening on http://127.0.0.1:4863
  Warning: Navigation containers expect a collection of `bslib::nav()`/`shiny::tabPanel()`s and/or `bslib::nav_menu()`/`shiny::navbarMenu()`s. Consider using `header` or `footer` if you wish to place content above (or below) every panel's contents.
  Warning: Error in : Navigation containers expect a collection of `bslib::nav()`/`shiny::tabPanel()`s and/or `bslib::nav_menu()`/`shiny::navbarMenu()`s. Consider using `header` or `footer` if you wish to place content above (or below) every panel's contents.
    85: stop
    84: FUN
    83: lapply
    82: buildTabset
    81: tabsetPanel_
    80: func
    78: tabsetPanel
  Warning: Navigation containers expect a collection of `bslib::nav()`/`shiny::tabPanel()`s and/or `bslib::nav_menu()`/`shiny::navbarMenu()`s. Consider using `header` or `footer` if you wish to place content above (or below) every panel's contents.
  Warning: Error in : Navigation containers expect a collection of `bslib::nav()`/`shiny::tabPanel()`s and/or `bslib::nav_menu()`/`shiny::navbarMenu()`s. Consider using `header` or `footer` if you wish to place content above (or below) every panel's contents.
    85: stop
    84: FUN
    83: lapply
    82: buildTabset
    81: tabsetPanel_
    80: func
    78: tabsetPanel
  
  Have I done something wrong or is the function broken in some way?
  
  user14987: The issue is with the navbar page, downgrading shiny to 1.6 or in my case 1.4 fixed it for me, the detailed link to find to the solution is here: https://github.com/rstudio/shiny/issues/3556
  Cheers.
  
original_text: 14444: <p>When I execute:</p>
  <p><code>&gt; FastqCleaner:::launch_fqc()()</code></p>
  <p>I get the following output</p>
  <pre><code>Listening on http://127.0.0.1:4863
  Warning: Navigation containers expect a collection of `bslib::nav()`/`shiny::tabPanel()`s and/or `bslib::nav_menu()`/`shiny::navbarMenu()`s. Consider using `header` or `footer` if you wish to place content above (or below) every panel's contents.
  Warning: Error in : Navigation containers expect a collection of `bslib::nav()`/`shiny::tabPanel()`s and/or `bslib::nav_menu()`/`shiny::navbarMenu()`s. Consider using `header` or `footer` if you wish to place content above (or below) every panel's contents.
    85: stop
    84: FUN
    83: lapply
    82: buildTabset
    81: tabsetPanel_
    80: func
    78: tabsetPanel
  Warning: Navigation containers expect a collection of `bslib::nav()`/`shiny::tabPanel()`s and/or `bslib::nav_menu()`/`shiny::navbarMenu()`s. Consider using `header` or `footer` if you wish to place content above (or below) every panel's contents.
  Warning: Error in : Navigation containers expect a collection of `bslib::nav()`/`shiny::tabPanel()`s and/or `bslib::nav_menu()`/`shiny::navbarMenu()`s. Consider using `header` or `footer` if you wish to place content above (or below) every panel's contents.
    85: stop
    84: FUN
    83: lapply
    82: buildTabset
    81: tabsetPanel_
    80: func
    78: tabsetPanel
  </code></pre>
  <p>Have I done something wrong or is the function broken in some way?</p>
   14987: <p>The issue is with the navbar page, downgrading shiny to 1.6 or in my case 1.4 fixed it for me, the detailed link to find to the solution is here: <a href="https://github.com/rstudio/shiny/issues/3556" rel="nofollow noreferrer">https://github.com/rstudio/shiny/issues/3556</a></p>
  <p>Cheers.</p>
  