Rmarkdown error when I render any document

[Nikogta4]

Hi, and thanks for reading me
Lately I have been having a problem wanting to make a markdown document, because although I do new projects, every time I render them it generates the bookdown test document and I don't know why this happens. I already tried uninstalling and installing bookdown and markdown but that still happens. Does anyone know why?

For example, I make a simple document, like the following:

---
title: "Example"
output: html_document
---

```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE)
```

And when I render it I get this:

[HanOostdijk]

Strange !?

The code/text you have saved in an Rmd-file?
And in an empty folder? Or are there some remnants of a bookdown project?
If you create a new empty project and copy the Rmd file in it, it must render correctly ..... (??)
How do you knit? With the button or with a function call?

Success! And let us know how it goes.