Installation failing on R 3.5.1 / macOS

[mdmadhu]

Hi!

Below is the problem I run into when I try to install gganimate. Based on some searches, I tried a reinstall of the Cairo library via Homebrew, but that didn't help either. Any thoughts on what I may be doing wrong? Thanks!

> devtools::install_github('thomasp85/gganimate')
Downloading GitHub repo thomasp85/gganimate@master
from URL https://api.github.com/repos/thomasp85/gganimate/zipball/master
Installing gganimate
'/Library/Frameworks/R.framework/Resources/bin/R' --no-site-file --no-environ --no-save --no-restore --quiet CMD  \
  INSTALL  \
  '/private/var/folders/v3/8qnv_799481162wwbnj62fq00000gn/T/RtmpcuWCo6/devtools39ac6b9c4d0b/thomasp85-gganimate-13a9a29'  \
  --library='/Library/Frameworks/R.framework/Versions/3.5/Resources/library' --install-tests 

* installing *source* package ‘gganimate’ ...
** R
** byte-compile and prepare package for lazy loading
Error in dyn.load(file, DLLpath = DLLpath, ...) : 
  unable to load shared object '/Library/Frameworks/R.framework/Versions/3.5/Resources/library/gdtools/libs/gdtools.so':
  dlopen(/Library/Frameworks/R.framework/Versions/3.5/Resources/library/gdtools/libs/gdtools.so, 6): Library not loaded: /opt/X11/lib/libcairo.2.dylib
  Referenced from: /Library/Frameworks/R.framework/Versions/3.5/Resources/library/gdtools/libs/gdtools.so
  Reason: image not found
ERROR: lazy loading failed for package ‘gganimate’
* removing ‘/Library/Frameworks/R.framework/Versions/3.5/Resources/library/gganimate’
Installation failed: Command failed (1)

[mdmadhu]

Ok, here's what solved the problem above for me. Although I had XQuartz already installed, I downloaded XQuartz once again, reinstalled it, rebooted the computer, and re-ran the install. It went through this time without problems.