Answers.Body: <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>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2022-02-03T18:17:37.833Z
Answers.LastActivityDate: 2022-02-03T18:17:37.833Z
Answers.UserDisplayName: adeizadavid
Body: <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>
  
Tags: <r><bioconductor><fastq><fastqc><rstudio>
Title: fastqCleaner failing to launch in RStudio
ThreadText: # fastqCleaner failing to launch in RStudio
  
  (Asked by: username_0 on 2021-10-26)
  
  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?
  
  **Tags:** r, bioconductor, fastq, fastqc, rstudio
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2022-02-03. Score: 2
  
  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.
  
  
  ---
  
  