Dear Professor Dave Zhao

Hi I am a PhD student who is very interested in your article.
So I tried to install your package and found the following error and have not solved it yet. May I get your advice?
To solve this problem, I tried also using devtools besides the remote command, but it did not solve the problem. Perhaps I guess there is a problem with the common installation path on github. I've attached the error I found on my computer below.
Thank you in advance for your sincerity. And have a nice day :)

Best wishes,
Hoyoung Park

remotes::install_github("sdzhao/cole")
Downloading GitHub repo sdzhao/cole@master
Your system is ready to build packages!
✔ checking for file ‘/private/var/folders/dn/9pq4yfyd1j11cgp5v8qd8f1m0000gn/T/RtmpJHRqdP/remotesc23d2586169f/sdzhao-cole-94e1a96/DESCRIPTION’ (910ms)
─ preparing ‘cole’:
✔ checking DESCRIPTION meta-information ...
─ cleaning src
─ checking for LF line-endings in source and make files and shell scripts (337ms)
─ checking for empty or unneeded directories
─ building ‘cole_1.1.0.tar.gz’

• installing source package ‘cole’ ...
  ** using staged installation
  ** libs
  clang++ -std=gnu++11 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -I"/Library/Frameworks/R.framework/Versions/3.6/Resources/library/Rcpp/include" -I"/Library/Frameworks/R.framework/Versions/3.6/Resources/library/RcppArmadillo/include" -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -I/usr/local/include -fopenmp -fPIC -Wall -g -O2 -c RcppExports.cpp -o RcppExports.o
  clang: error: unsupported option '-fopenmp'
  make: *** [RcppExports.o] Error 1
  ERROR: compilation failed for package ‘cole’
• removing ‘/Library/Frameworks/R.framework/Versions/3.6/Resources/library/cole’
  Error: Failed to install 'cole' from GitHub:
  (converted from warning) installation of package ‘/var/folders/dn/9pq4yfyd1j11cgp5v8qd8f1m0000gn/T//RtmpJHRqdP/filec23d63733f8/cole_1.1.0.tar.gz’ had non-zero exit status

FYI, my Rstudio version is :

version
_
platform x86_64-apple-darwin15.6.0
arch x86_64
os darwin15.6.0
system x86_64, darwin15.6.0
status
major 3
minor 6.1
year 2019
month 07
day 05
svn rev 76782
language R
version.string R version 3.6.1 (2019-07-05)
nickname Action of the Toes