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RConsortium / S7

S7: a new OO system for R
https://rconsortium.github.io/S7
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Error: trying to get slot "<>" from an object (class "<>") that is not an S4 object #462

Closed MarcellGranat closed 1 week ago

MarcellGranat commented 2 weeks ago

Hi,

I just developed a package based on S7, but it turned out that it runs into an error if someone wants to use it with R 4.2.3. But only with that specific version.

The example is truly minimal, only the sample range class: https://github.com/MarcellGranat/tests7

You can try it with posit cloud to investigate it with different R versions. install.packages("S7") install.packages("remotes") remotes::install_github("marcellgranat/tests7")

Thank in advance for suggestions, Marcell

hadley commented 1 week ago

Did you see the advice in https://rconsortium.github.io/S7/articles/packages.html#backward-compatibility ?

MarcellGranat commented 1 week ago

Did you see the advice in https://rconsortium.github.io/S7/articles/packages.html#backward-compatibility ?

That truly solved the issue! Yes, sorry I did not notice this