conda env installation troubleshooting on carbonate/RED

[jtourig]

This is probably more of a conda issue than anything particular to TSRexploreR.

When trying to install current TSRexploreR:main using the conda env recipe provided in INSTALL, I get the following error:

/../../../../x86_64-conda-linux-gnu/bin/ld: cannot find -lpng15
collect2: error: ld returned 1 exit status
make: *** [/N/u/tourigny/Carbonate/.conda/envs/TSRexploreR/lib/R/share/make/shlib.mk:10: ragg.so] Error 1
ERROR: compilation failed for package ‘ragg’
* removing ‘/geode2/home/u100/tourigny/Carbonate/.conda/envs/TSRexploreR/lib/R/library/ragg’
* restoring previous ‘/geode2/home/u100/tourigny/Carbonate/.conda/envs/TSRexploreR/lib/R/library/ragg’
Error: Failed to install 'TSRexploreR' from GitHub:
  (converted from warning) installation of package ‘ragg’ had non-zero exit status

Has anyone encountered this issue or know where to grab the missing lib?

[jtourig]

Resolved (or avoided) by not letting environment R upgrade ragg to 4.0.1

Do we want to include this in INSTALL or a user troubleshooting section / Q&A?