[help] Weird problem with tar_outdated

[ksvanhorn]

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Description

A few days ago targets started giving me the following error when I do tar_outdated() on certain targets:

Error:
! Error running targets::tar_outdated()
Error messages: targets::tar_meta(fields = error, complete_only = TRUE)
Debugging guide: https://books.ropensci.org/targets/debugging.html
How to ask for help: https://books.ropensci.org/targets/help.html
Last error: no applicable method for 'store_class_format' applied to an object of class "c('NA', 'character')"

That last line is pretty strange. Any idea what can cause this?

[wlandau]

Sounds like you may be running a newer version of targets on a project you began with an older version. If that's the case, you could downgrade to that old version, or you could call tar_destroy() if the current pipeline results are not important. If the problem persists, please post a reprex: https://books.ropensci.org/targets/help.html#write-a-reprex