Use older version of ggplot in R script file - r

Question

I have ggplot2 3.4.0 installed on Ubuntu 22.04, but for some reasons I would like to use older version ggplot2 3.3.6.
library(ggplot2, lib.loc="~/R/ggplot336/")
I worked fine when I started with a clean script file. However, when I use an existing script file like:
library(ggplot2, lib.loc="~/R/ggplot336/")
ggimage::geom_image()
I got the following error massage:
Error in value[3L] :
Package ‘ggplot2’ version 3.4.0 cannot be unloaded:
Error in unloadNamespace(package) : namespace ‘ggplot2’ is imported by ‘ggfun’, ‘ggplotify’, ‘ggimage’ so cannot be unloaded
Edit
Fresh start Rstudio
Open my R script file with following 3 lines:
sessionInfo()
library(ggplot2, lib.loc="~/R/ggplot336/")
ggimage::geom_image()
When I run the first line, sessionInfo() before doing anything else. We can see ggplot2_3.4.0 there. Could this be a Rstudio feature or an issue?
R version 4.2.2 Patched (2022-11-10 r83330)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 22.04.1 LTS
Matrix products: default
BLAS: /usr/lib/x86_64-linux-gnu/blas/libblas.so.3.10.0
LAPACK: /usr/lib/x86_64-linux-gnu/lapack/liblapack.so.3.10.0
locale:
[1] LC_CTYPE=en_AU.UTF-8 LC_NUMERIC=C LC_TIME=en_AU.UTF-8
[4] LC_COLLATE=en_AU.UTF-8 LC_MONETARY=en_AU.UTF-8 LC_MESSAGES=en_AU.UTF-8
[7] LC_PAPER=en_AU.UTF-8 LC_NAME=C LC_ADDRESS=C
[10] LC_TELEPHONE=C LC_MEASUREMENT=en_AU.UTF-8 LC_IDENTIFICATION=C
attached base packages:
[1] stats graphics grDevices utils datasets methods base
loaded via a namespace (and not attached):
[1] Rcpp_1.0.9 highr_0.9 pillar_1.8.1 compiler_4.2.2
[5] R.utils_2.12.2 R.methodsS3_1.8.2 yulab.utils_0.0.5 tools_4.2.2
[9] digest_0.6.30 evaluate_0.18 jsonlite_1.8.3 lifecycle_1.0.3
[13] tibble_3.1.8 gtable_0.3.1 ggimage_0.3.1 R.cache_0.16.0
[17] pkgconfig_2.0.3 rlang_1.0.6 reprex_2.0.2 DBI_1.1.3
[21] cli_3.4.1 ggplotify_0.1.0 rstudioapi_0.14 magick_2.7.3
[25] yaml_2.3.6 xfun_0.35 fastmap_1.1.0 knitr_1.41
[29] withr_2.5.0 dplyr_1.0.10 styler_1.8.1 generics_0.1.3
[33] vctrs_0.5.1 fs_1.5.2 gridGraphics_0.5-1 grid_4.2.2
[37] tidyselect_1.2.0 glue_1.6.2 R6_2.5.1 processx_3.8.0
[41] fansi_1.0.3 rmarkdown_2.18 clipr_0.8.0 callr_3.7.3
[45] ggplot2_3.4.0 purrr_0.3.5 magrittr_2.0.3 ps_1.7.2
[49] htmltools_0.5.3 scales_1.2.1 assertthat_0.2.1 colorspace_2.0-3
[53] utf8_1.2.2 munsell_0.5.0 ggfun_0.0.9 R.oo_1.25.0

Answer 1

It looks like R studio is loading in all of the previous libraries from a previous session. Maybe something leftover in .RData or .Rhistory. A fresh start of R should have far few loaded libraries.
Here is my fresh start:
sessionInfo()
R version 4.2.2 (2022-10-31)
Platform: x86_64-apple-darwin17.0 (64-bit)
Running under: macOS Monterey 12.6.1
Matrix products: default
LAPACK: /Library/Frameworks/R.framework/Versions/4.2/Resources/lib/libRlapack.dylib
locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
attached base packages:
[1] stats graphics grDevices utils datasets methods base
loaded via a namespace (and not attached):
[1] compiler_4.2.2 tools_4.2.2
In Rstudio's preference you should see this screen:
I would try unchecking all of the boxes and then quit and restart Rstudio to see if that clears up the problem.

Answer 2

After some experiments, I kind of worked out the problem. Since this has consumed so much time of my time, I thought this could be helpful to others.
The problem is :: (double colon) with packages using ggplot2, such as ggimage in my example. It appears that RStudio automatically load some dependent packages when a script file is open. One way to fix this problem for my work now is to remove ::, but use library() then function (geom_image) instead.
This fixed my problem but I still don't understand why RStudio behaves this way.
If :: (double colon) is necessary, comment lines containing ::, then after loading older version of ggplot2, uncomment those lines. A little awkward, but it works for me.