I am currently creating my first R-package (: D) with the R6 class thanks to RStudio, devtools and roxygen2. When my package contains only functions, I can create and download it without any problems. But when I want to document R6 classes (with fields and methods like Node "in this package https://cran.r-project.org/web/packages/data.tree/data.tree.pdf ), RStudio don't want to build a package I tried to find a trick in the forums, but the information on this issue is very scarce.
My procedure:
- Open Rstudio, create a new project, I choose the "R-package"
- I fill in the package name and I select the source files on which my packages will be based (one function and 3 classes).
-> At this point, the procedure is OK, because I get the correct structure with a "person" with a description of my different classes "R" with different scripts of these classes.
But when I try to create and reload the package (preloading the R6 packages), an error occurs:
==> R CMD INSTALL --no-multiarch --with-keep.source esa
* installing to library ‘/home/cha/R/x86_64-pc-linux-gnu-library/3.0’
* installing *source* package ‘esa’ ...
** R
** preparing package for lazy loading
Error in eval(expr, envir, enclos) :
impossible de trouver la fonction "R6Class" (translation: impossible to find the function "R6Class")
Error : unable to load R code in package ‘esa’
ERROR: lazy loading failed for package ‘esa’
* removing ‘/home/cha/R/x86_64-pc-linux-gnu-library/3.0/esa’
* restoring previous ‘/home/cha/R/x86_64-pc-linux-gnu-library/3.0/esa’
Exited with status 1.
I don’t understand how to fix this error, because Rstudio is right: R6Class is not a function!
My questions:
Is my procedure correct? How can I fix this error?
I need to know if Rstudio can take into account the R6 classes in the R-package? If not, I can do it manually, but I just need to know to stop putting off time on RStudio :)
Thank you in advance for your help!
Cha
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