Tutorials cannot be launched under Windows because of rmarkdown

[alex23lemm]

At least for me the latest two rmarkdown versions 1.7 and 1.8 cause the following error under Windows when launching a learnr tutorial:

> learnr::run_tutorial("hello", package = "learnr")

Listening on http://127.0.0.1:5661
Warning: Error in normalizePath: path[1]="": The filename, directory name, or volume label syntax is incorrect
Stack trace (innermost first):
    8: <Anonymous>
    7: do.call
    6: rmarkdown::run
    5: force
    4: withr::with_envvar
    3: force
    2: withr::with_dir
    1: learnr::run_tutorial
Error : path[1]="": The filename, directory name, or volume label syntax is incorrect

Downgrading to version 1.6 using devtools::install_version("rmarkdown", version = "1.6") solves the issue:

> packageVersion("rmarkdown")
[1] ‘1.6’
> learnr::run_tutorial("hello", package = "learnr")

Listening on http://127.0.0.1:5661

[jjallaire]

@yihui Could you take a look at this?

[yihui]

Should be fixed by #134.

[alex23lemm]

Thanks for the fix! I just tested the latest learnr dev version 0.9.2 and everything works as expected again.

[poldrack]

This has fixed the problem with learnr::run_tutorial("hello", package = "learnr") but I am still getting the same path error with other learnr tutorials - e.g. learnr::run_tutorial("adventr_01",package='adventr') from https://github.com/profandyfield/adventr

[yihui]

@poldrack You need to delete the .html file and recompile the .Rmd document.

[poldrack]

awesome, works now - thanks!