My RStudio(version 1.1.414) is not able to render a R Markdown file into HTML. I have a very simple R Markdown file called testHTML.Rmd:
---
title: "Untitled"
output:
html_document: default
---
## R Markdown
This is a test!
In my main R code, I am calling the render() statement as render('testHTML.Rmd'). I got the following error message related to regexp:
Error in gregexpr("(?)`r[ #]([^`]+)\\s*`", "---\ntitle:
\"Untitled\"\noutput:\n html_document: default\n \n---\n", : invalid
regular expression '(?<!(^| ))r[ #]([^]+)\s*`', reason 'Invalid
regexp'
Has anyone seen this error before when knit an R Markdown file? What is the solution?
For me updating all installed packages worked after I got the same error message.
The problem occured after updating RStudio to 1.1.463 and R to 3.5.2. I was asked to update knitr, rmarkdown and yaml ( I think, at least three packages were mentioned ). After updating yaml the error occured.
Updating all existing packages made the error disappear again. Hope this helps.
Related
Whenever I tried to knit R markdown in beamer presentation format, it keeps on giving me undefined control sequence.
It is fraustrating because it worked fine until yesterday and I have no idea what I changed that causes this error.
To show that my code is not the source of the problem, I simply tried to knit an empty page.
code:
---
title: "untitled"
output: beamer_presentation
---
Output:
output file: a.knit.md
! Undefined control sequence.
<argument> ...{subsubsection}\addtobeamertemplate
{theorem begin}{\expandaft...
l.322 }{}
My original file returns the exaclty same error message.
I tried:
reinstall LaTeX
reinstall RStudio
upgrade all packages in R
Any idea how to fix this?
This was just fixed by #UlrikeFischer. #JosephWright is preparing a new beamer release as we speak, it should be available as beamer v3.67 on ctan tomorrow.
As a temporary workaround, place these two files in the folder of your .rmd file:
https://raw.githubusercontent.com/josephwright/beamer/main/base/beamer.cls
https://raw.githubusercontent.com/josephwright/beamer/main/base/beamerbasesection.sty
(don't forget to delete these files again once you have the new beamer version, otherwise they might interfere with future updates)
Currently I'm working on automating a project. Problem: The program is failing to knit because of the following code:
output:
powerpoint_presentation:
reference_doc: ref.pptx
The error code states:
Could not find shape for Powerpoint content
Error: pandoc document conversion failed with error 63
Execution halted
When I put my presentation into Google Slides, the theme works without a problem. Any ideas on how to fix this?
Hey I'm trying to use some latex in an R markdown file but I'm getting this error:
Try other LaTeX engines instead (e.g., xelatex) if you are using pdflatex. For R Markdown users, see https://bookdown.org/yihui/rmarkdown/pdf-document.html
Error: Failed to compile M5_collab.tex. See https://yihui.name/tinytex/r/#debugging for debugging tips. See M5_collab.log for more info.
In addition: There were 33 warnings (use warnings() to see them)
Execution halted
I've checked out the bookdown website and I've installed tinytex
install.packages("tinytex")
Can someone let me know what's going wrong? How can I solve this?
Thank you
I had the same problem as you.
In my case I wanted to generate a pdf file and received this message you received.
I solved the problem of defining latex_engine as follows:
---
title: "Report"
output:
pdf_document:
latex_engine: xelatex
---
When I try to knit to PDF I have this error:
! Package inputenc Error: Unicode char \u8:。 not set up for use with LaTeX.
See the inputenc package documentation for explanation.
Type H for immediate help.
...
l.387 explained by ``gdp''。
Try running pandoc with --latex-engine=xelatex.
pandoc: Error producing PDF from TeX source
Error: pandoc document conversion failed with error 43
Execution halted
I did includes all files in the working directory but still don't know why.
I could not comment on the previous post by scoa, but the YAML header argument misses a space and should read:
output:
pdf_document:
latex_engine: xelatex
I had a similar problem once. Try installing Pandoc on your machine, reboot and try again. You can download Pandoc here.
Also, you'd most likely need to install MiKTeX.
I hope this helps.
This is an encoding error. The easiest way to deal with it is to add the following line in the YAML preamble of your document.
---
output:
pdf_document:
latex_engine:xelatex
---
I can't produce an HTML document from any .Rmd file by pressing the Knit HTML button in R Studio, including the sample document that summarizes and plots the cars dataset. Here's the error message that I get:
Error: unrecognized fields specified in html_dependency: attachment
Execution halted
However, I can produce the HTML document by running the command knit2html("file.Rmd"). The Knit PDF button also functions properly. Does anyone have an idea about how to fix this error?
Here's the sample .Rmd file that I have:
title: "Untitled"
author: "blakeoft"
date: "Friday, September 12, 2014"
output: html_document
---
A summary:
```{r}
summary(cars)
```
I had the same problem which went away after upgrading to RStudio version 0.98.1056 (released 9 September 2014).
As I've answered on another thread, updating RStudio didn't work for me. So I tried updating all R packages (Tools > Check for Package Updates...) and then it worked.