I use R 3.3.3both RStudio 1.0.136and the latest versions of all packages.
I get this error with package plotly
> ggiris <- qplot(Petal.Width, Sepal.Length, data = iris, color = Species)
> ggplotly(ggiris)
Error in grid.Call(L_convert, x, as.integer(whatfrom), as.integer(whatto), :
VECTOR_ELT() can only be applied to a 'list', not a 'NULL'
This error no longer occurs after I “print” ggplot:
> ggiris
> ggplotly(ggiris)
This happens not only in RStudio, but also in the Shiny application.
Any clues?
Note. It rather happens with a “fresh” session (immediately after opening RStudio).
> sessionInfo()
R version 3.3.3 (2017-03-06)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 7 x64 (build 7601) Service Pack 1
locale:
[1] LC_COLLATE=French_Belgium.1252 LC_CTYPE=French_Belgium.1252
[3] LC_MONETARY=French_Belgium.1252 LC_NUMERIC=C
[5] LC_TIME=French_Belgium.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] plotly_4.5.6 ggplot2_2.2.1
loaded via a namespace (and not attached):
[1] Rcpp_0.12.9 tidyr_0.6.1 viridisLite_0.1.3 digest_0.6.12
[5] dplyr_0.5.0 assertthat_0.1 grid_3.3.3 plyr_1.8.4
[9] R6_2.2.0 jsonlite_1.3 gtable_0.2.0 DBI_0.6
[13] magrittr_1.5 scales_0.4.1 httr_1.2.1 lazyeval_0.2.0
[17] labeling_0.3 tools_3.3.3 htmlwidgets_0.8 purrr_0.2.2
[21] munsell_0.4.3 yaml_2.1.14 base64enc_0.1-3 colorspace_1.3-2
[25] htmltools_0.3.5 tibble_1.2
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