Hi all, I frequently find that I've failed to export something in my NAMESPACE and hence my package doesn't work when it's imported into another package. Does anyone have suggestion for debugging this type of problem? R CMD check passes without any ns related errors on both the importee and the importer.
I've attached a reproducible example - if you install the development
version of ggplot2 (e.g. with devtools::install_github("ggplot2") the
attached package fails R CMD check with:
> ### ** Examples
>
> plot(my_plot())
Error in structure(list(data = data, layers = list(), scales = Scales$new(), :
attempt to apply non-function
Calls: plot ... my_plot -> ggplot -> ggplot.data.frame -> structure
Execution halted
Error: Command failed (1)
Hadley
--
Assistant Professor / Dobelman Family Junior Chair
Department of Statistics / Rice University
http://had.co.nz/
nstest_0.1.tar.gz
Description: GNU Zip compressed data
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