I have no sample data so pardon me. However, I am just looking for some basic information on this error. This only started occurring when I installed R 4.2.1. The full error is below. The data frame that the item is drawing from shows data when I go to the environment. Also, it occurs when I knit the document but not when I run the individual code chunk. The code chunk where this error occurs runs fine when I click the green triangle to the right.
Has anyone ever encountered this error? If so, what did you do to resolve it?
Quitting from lines 2863-2864 (Document-July-2022.Rmd)
Error in readLines(con, warn = FALSE) : cannot open the connection
Calls: <Anonymous> ... <Anonymous> -> enumerate_output_formats ->
read_utf8 -> readLines
In addition: There were 27 warnings (use warnings() to see them)
Update
I am able to temporarily resolve this issue by using setwd(S://and so on) in each of the code chunks that only lists the table or chart. Seems strange that I can resolve this by doing the setwd command in excess of 30 times in one markdown file.
Related
I know that this error has been asked often but I've checked most of the questions and none of them have the same cause as mine, at least on the surface.
I work in Rstudio. The console lets you write functions and offers suggestions, for example if I start typing "ex" the first option will be the "exp" function:
(example)
The problem is that everytime that the suggestion box appears there is a small time (usually a second or two) before a pop up window appears, saying "Error retrieving help. R code execution error" and in the console the text in red says: "Error in file(out, "wt") : cannot open the connection". Fortunately the console command that I'm writing doesn't get deleted but it is still very annoying and sometimes I want to use the suggestion box to save time but it feels that I have to rush to select the function before Rstudio punishes me.
When I run my Rmarkdown program interactively chunk-by-chunk, the program runs successfully without errors, however, when I try to knit it, I get this error message:
Error in dirname(name) : path too long
Any ideas what could be causing this?
If you get this error message, check the length of your code chunks in your Rmarkdown code. I was getting the above error because one of my chunks were named as follows:
```{r additional descriptives and other statistical tests tests,echo=FALSE,message=FALSE,warning=FALSE}
Through trial and error, I found out the maximum length for the code chunk description is 48 characters. As long as the description has 48 or fewer characters, this error will not get triggered.
Hello StackOverflow community,
I have been trying over the last few weeks using R Markdown to Knit HTML file.
While it use to run smoothly the previous time, over the last week I keep on getting the following error
Quitting from lines 43-92 (Vizualisation.Rmd)
Error in eval(lhs, parent, parent) :
object 'processed.feedback' not found
Calls: <Anonymous> ... withCallingHandlers -> withVisible -> eval -> eval -> %>% -> eval -> eval
Execution halted
The thing is that my source 'processed.feedback' is loaded within my Global environment. But is not created with the .rmd but before in a script file.
If I do the wrangling as well in the same Rmarkdown the it works fine (no error). But I would love to keep the wrangling part in a separate file.
Any suggestion.
Thanks in advance for your feedback and help!
If you are at the Rstudio conference - enjoy!
The usual model is that R Markdown files do not see objects that are in your workspace: they start with a blank workspace, so that anyone can reproduce the computation. (There are ways to work in an existing workspace, but you shouldn't use them.)
If it takes too long to create an object in the Rmd code, then there are at least two options: turn on caching (so it only happens when necessary), or save the object in a separate file using save() and load it in your document using load(). Remember to distribute the save file along with the .Rmd file if you want to give this document to someone else.
I'm trying to create a PDF in R Markdown and I keep getting this error message every time I try to click "Knit to PDF":
output file: test_4_for_r.knit.md
Output created: test_4_for_r.pdf
Error in tools::file_path_as_absolute(output_file) :
file 'test_4_for_r.pdf' does not exist
Calls: <Anonymous> -> <Anonymous>
In addition: Warning message:
In readLines(logfile) : incomplete final line found on 'test_4_for_r.log'
Execution halted
I do not have a lot of familiarity with RStudio, so I have no idea why I'm getting this message. I've read several things online saying creating PDFs in R Markdown requires several packages, but so far I've only found the name of knitr. That is the only one I have currently installed. I'm not sure if that is the issue or not.
Can someone please point me in the right direction on how to remedy this? Any help would be GREATLY appreciated.
In R-Studio Tools > Global Options, under the Sweave tab, try changing "Weave Rnw using:" from sweave to knitr. Also try
install.packages('tinytex')
tinytex::install_tinytex()
and then try to knit your PDF.
If those don't work, please paste the markdown code giving you trouble. Could you knit the example markdown file, found when you File > New File > R Markdown?
I am getting an error message while running knit to HTML. But If I run chunk individually, it draws plot as expected.
What would be a problem? The error message is below:
Quitting from lines 270-274 (HC_FC_indivisual_cellline_fdr_1%.Rmd)
Error in png(..., res = dpi, units = "in") : invalid 'filename' Calls:
... in_dir -> plot2dev -> do.call -> -> png
Execution halted
The described error also occurs, when you are knitting plots within named code chunks, and the name of the chunk does not lead to a valid path name during knitting process.
That is, during the knitting process the plots are written into a temporary path which contains the name of the code chunk, ergo this name should contain only characters that are valid for path names. One should avoid to use white characters for chunk names as well.
I ran into the same issue. I ran this right before my first plot in the chunk and it solved it for me
dev.off()
hope this helps.
I had the same problem. I updated R to the latest version and also RStudio. Install the required packages for the knit and then everything became fine.
Adding 'dev.off()' can solve the problem for knitting but will cause another problem and does not show the plots in the HTML file.