After updating R Version from 3.3.3 to 3.4.2 my flexdashbords dont work anymore
When running that simple example:
---
title: "Flexdash Layout Test"
output:
flexdashboard::flex_dashboard:
orientation: columns
vertical_layout: fill
---
```{r setup, include=FALSE}
library(flexdashboard)
```
Page 1
===================================================
Column 1 {data-width=650}
-----------------------------------------------------------------------
### Chart A
```{r}
print('Chart A')
```
Column 2 {data-width=350}
-----------------------------------------------------------------------
### Chart B
```{r}
print('Chart B')
```
Page 2
===============================================
### Chart C
```{r}
print('Chart C')
```
The result looks like this: flexdash layout error
So obviously the formatting syntax does not work.
Thank you in advance for any hint to solve that problem
EDIT: When I try that example and choose html as output, the formatting result looks like expected.
---
title: "Rmd Formatierung Test"
output: html_document
---
Plain text
End a line with two spaces
to start a new paragraph.
*italics* and _italics_
**bold** and __bold__
superscript^2^
~~strikethrough~~
[link](www.rstudio.com)
# Header 1
## Header 2
So the error is definitely related to flexdashboard
> sessionInfo()
R version 3.4.2 (2017-09-28)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows >= 8 x64 (build 9200)
Matrix products: default
locale:
[1] LC_COLLATE=German_Austria.1252 LC_CTYPE=German_Austria.1252 LC_MONETARY=German_Austria.1252
[4] LC_NUMERIC=C LC_TIME=German_Austria.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] flexdashboard_0.5
loaded via a namespace (and not attached):
[1] compiler_3.4.2 backports_1.1.1 magrittr_1.5 rprojroot_1.2 htmltools_0.3.6 tools_3.4.2
[7] yaml_2.1.14 Rcpp_0.12.13 stringi_1.1.5 rmarkdown_1.7 knitr_1.17 jsonlite_1.5
[13] stringr_1.2.0 digest_0.6.12 evaluate_0.10.1
The issue is documented here : https://github.com/rstudio/flexdashboard/pull/150
Basically, pandoc 2.0 defaults to html5 instead of html by default which breaks flexdashboard layout.
You have two options:
1) Downgrade to pandoc 1.x
2) Install the Github package until it gets pushed to CRAN. This fixed the issue for me.
remove.packages("flexdashboard")
install.packages("devtools")
library("devtools")
install_github("rstudio/flexdashboard")