I'm rendering a very basic Rmd that knits just fine:

**test2.Rmd**
```
    ---
    title: "Building R from source"
    author: "Andrie de Vries"
    date: "6 July 2018"
    output: 
      html_document: 
        self_contained: no
    ---
    
    ```{r setup, include=FALSE}
    knitr::opts_chunk$set(echo = TRUE)
    ```
    
    Some text
```

I then run ` quarto render .\test2.Rmd`  but I get this error:

```
Error running filter C:/Program Files/Quarto/share/filters/quarto-pre/quarto-pre.lua:
...ram Files/Quarto/share/filters/quarto-pre/quarto-pre.lua:1343: attempt to index a nil value (local 'f')
stack traceback:
        ...ram Files/Quarto/share/filters/quarto-pre/quarto-pre.lua:1343: in function 'readIncludeFiles'
        ...ram Files/Quarto/share/filters/quarto-pre/quarto-pre.lua:1307: in function <...ram Files/Quarto/share/filters/quarto-pre/quarto-pre.lua:1299>
SyntaxError: Unexpected end of JSON input
    at JSON.parse (<anonymous>)
    at runPandoc (file:///C:/Program%20Files/Quarto/bin/quarto.js:19872:36)
    at async renderPandoc (file:///C:/Program%20Files/Quarto/bin/quarto.js:20008:27)
    at async renderFiles (file:///C:/Program%20Files/Quarto/bin/quarto.js:17379:34)
    at async render (file:///C:/Program%20Files/Quarto/bin/quarto.js:17788:22)
    at async Command.fn (file:///C:/Program%20Files/Quarto/bin/quarto.js:20208:29)
    at async Command.execute (file:///C:/Program%20Files/Quarto/bin/quarto.js:1812:17)
    at async Command.parse (file:///C:/Program%20Files/Quarto/bin/quarto.js:1765:20)
    at async Command.parse (file:///C:/Program%20Files/Quarto/bin/quarto.js:1727:20)
    at async quarto1 (file:///C:/Program%20Files/Quarto/bin/quarto.js:24974:5)
```


My environment:

```
PS C:\Users\apdev\Documents\github\experiments\zendesk_articles> quarto help

  Usage:   quarto
  Version: vv0.1.117
```
dragonstyle
2021-03-05T08:35:53Z
andrie
closed
Rendering a basic Rmd on Windows throws lua filter errors
https://github.com/quarto-dev/quarto-cli/issues/21