Xaringan Infinite Moon Reader Addin

RStudio IDE
#1

I'm attempting to use the really cool xaringan package for creating presentations but the Infinite Moon Reader Addin is not rendering the output correctly.

Here is a screenshot of what I see when I hit the Knit to moon_reader button (I'm Knitting the default Ninja Presentation template):

Infinite Moon Reader screenshot

Expanding the window will reveal the plain text of the RMarkdown document. The Open in Browser option displays the output just fine. I have not been able to diagnose what is going wrong and haven't located anyone documenting the same issue. Suggestions would be much appreciated.

I am using RStudio Version 1.1.345 and Version 0.4 of xaringan. My laptop was recently upgraded, to Windows 10. The Infinite Moon Reader Addin worked on my Windows 7 machine.

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#2

I have heard a few Windows users report the same problem. I guess you have to open the presentation in an external browser if you use Windows (there seems to be some https issues with the Windows version of the RStudio IDE).

2 Likes
#3

I'm on ubuntu 18.04 and have the same issue. When I view in browser the presentation is fine, but within Rstudio browser I see the same image as OP.

Below is my session info, I recently updated my packages after I upgraded to 18.04 so maybe some dependencies are not correct. Was a solution to this ever found?

devtools::session_info()
Session info -----------------------------------------------------------------------------------
 setting  value                       
 version  R version 3.4.4 (2018-03-15)
 system   x86_64, linux-gnu           
 ui       RStudio (1.1.456)           
 language en_GB:en                    
 collate  en_GB.UTF-8                 
 tz       Europe/London               
 date     2018-09-06                  

Packages ---------------------------------------------------------------------------------------
 package   * version date       source                         
 backports   1.1.2   2017-12-13 CRAN (R 3.4.3)                 
 base      * 3.4.4   2018-04-21 local                          
 compiler    3.4.4   2018-04-21 local                          
 datasets  * 3.4.4   2018-04-21 local                          
 devtools    1.13.6  2018-06-27 CRAN (R 3.4.4)                 
 digest      0.6.16  2018-08-22 CRAN (R 3.4.4)                 
 evaluate    0.10.1  2017-06-24 CRAN (R 3.4.2)                 
 graphics  * 3.4.4   2018-04-21 local                          
 grDevices * 3.4.4   2018-04-21 local                          
 htmltools   0.3.6   2017-04-28 CRAN (R 3.4.2)                 
 knitr       1.20    2018-02-20 CRAN (R 3.4.4)                 
 magrittr    1.5     2014-11-22 CRAN (R 3.4.2)                 
 memoise     1.1.0   2017-04-21 CRAN (R 3.4.2)                 
 methods   * 3.4.4   2018-04-21 local                          
 Rcpp        0.12.18 2018-07-23 CRAN (R 3.4.4)                 
 rmarkdown   1.10    2018-06-11 CRAN (R 3.4.4)                 
 rprojroot   1.3-2   2018-01-03 CRAN (R 3.4.3)                 
 rsconnect   0.8.8   2018-03-09 CRAN (R 3.4.4)                 
 stats     * 3.4.4   2018-04-21 local                          
 stringi     1.2.4   2018-07-20 CRAN (R 3.4.4)                 
 stringr     1.3.1   2018-05-10 CRAN (R 3.4.4)                 
 tools       3.4.4   2018-04-21 local                          
 utils     * 3.4.4   2018-04-21 local                          
 withr       2.1.2   2018-03-15 cran (@2.1.2)                  
 xaringan    0.7.1   2018-09-06 Github (yihui/xaringan@edbd4a7)
 xfun        0.3     2018-07-06 CRAN (R 3.4.4)                 
 yaml        2.2.0   2018-07-25 CRAN (R 3.4.4)
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#4

The same for me on ubuntu 18.4. So, it's not a windows problem and reproducible.

#5

I'm not able to reproduce using the v1.2 preview release -- if you're not already using it, could you give it a download and let us know how it goes?

#6

Hello @kevinushey. I am using v1.2.1114 and just tried it again. The Infinite Moon Reader works as advertised now.

2 Likes
#7

I would like to also confirm that the inf_moon_reader() function works as intended now that I have installed the preview release of RStudio (v.1.2.1237). Thank you.

#8

I can confirm that I am encountering the same issue on a Windows machine. I am using RStudio Version 1.1.463

image
image1098Ɨ975 12.9 KB

#9

Hi,
I had this same problem running RStudio 1.1.436 on Ubuntu 18.04:

sessionInfo()
R version 3.5.1 (2018-07-02)
Platform: x86_64-conda_cos6-linux-gnu (64-bit)
Running under: Ubuntu 18.04.2 LTS

Upgrading to RStudio 1.2.1322 solved it for me, moon_reader() now working as advertised.

Very nice!

#10

I faced this issue intermittently over the past several months. After some detective work, I found that it was caused by a blocked link. In particular, if your ISP is blocking

https://remarkjs.com/downloads/remark-latest.min.js

then you will get this error.

Obviously, the preferred option is to get a better internet connection. If that is not possible, such as in a work environment, then it's possible to simply swap out the link in your HTML for a local file.

Happy knitting!
Rich

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