Rmarkdown doesn't create plots

[mandy]

I can't include figures on Rmarkdown. When I knit a RMD file with a plot, it shows this error:
error in png (..., res = dpi, units = "in"): unable to start png() calls: ... in_dir -> plot2dev -> do.call -> -> png
Além disso: warning messages: 1: In png (..., res = dpi, units = "in"): unable to open file 'teste_files/figure-docx/fi-1.png' for writing 2: In png(..., res = dpi, units = "in"): opening device failed

If the RMD doesn't have an image, I can knit and generate HTML, word, or pdf.
This also happens when I try to knit the example!

I updated R and Rstudio two weeks ago.

[jrkrideau]

Can you supply the code that you are using to generate the plot? Have a look at

FAQ: How to do a minimal reproducible example ( reprex ) for beginners

A minimal reproducible example consists of the following items: A minimal dataset, necessary to reproduce the issue The minimal runnable code necessary to reproduce the issue, which can be run on the given dataset, and including the necessary information on the used packages. Let's quickly go over each one of these with examples: Minimal Dataset (Sample Data) You need to provide a data frame that is small enough to be (reasonably) pasted on a post, but big enough to reproduce your issue. Let's say, as an example, that you are working with the iris data frame head(iris) #> Sepal.Length Sepal.Width Petal.Length Petal.Width Species #> 1 5.1 3.5 1.4 0.…

[mandy]

I used the example code provided by Rmarkdown.

I solved my problem. It was my antivirus, although I don't know why.