mediawiki installing R error - r

Question

I am trying to get extension R to work with mediawiki but have run into a roadblock with the following error:
REngine.php: sh: /usr/bin/R: No such file or directory
Does anyone know how to correct this issue? If I look at mediawiki/Special:Version, I can see R listed under extensions as version 0.14, but if I try to use <R>1:10</R> it throws that error.
After the comment to add a symlink below I was able to get a little further. I added the following symlink to my brew installation of R:
ln -s /usr/local/Cellar/r/3.1.2_1/R.framework/Versions/3.1/Resources/bin/R /usr/bin/R
and this was the output:
REngine.php: Error in dyn.load(file, DLLpath = DLLpath, ...) :
unable to load shared object '/usr/local/Cellar/r/3.1.2_1/R.framework/Versions/3.1/Resources/library/grDevices/libs/grDevices.so':
dlopen(/usr/local/Cellar/r/3.1.2_1/R.framework/Versions/3.1/Resources/library/grDevices/libs/grDevices.so, 6): Symbol not found: __cg_jpeg_resync_to_restart
Referenced from: /System/Library/Frameworks/ImageIO.framework/Versions/A/ImageIO
Expected in: /mediWiki/common/lib/libJPEG.dylib
in /System/Library/Frameworks/ImageIO.framework/Versions/A/ImageIO
Error in dyn.load(file, DLLpath = DLLpath, ...) :
unable to load shared object '/usr/local/Cellar/r/3.1.2_1/R.framework/Versions/3.1/Resources/library/grDevices/libs/grDevices.so':
dlopen(/usr/local/Cellar/r/3.1.2_1/R.framework/Versions/3.1/Resources/library/grDevices/libs/grDevices.so, 6): Symbol not found: __cg_jpeg_resync_to_restart
Referenced from: /System/Library/Frameworks/ImageIO.framework/Versions/A/ImageIO
Expected in: /mediWiki/common/lib/libJPEG.dylib
in /System/Library/Frameworks/ImageIO.framework/Versions/A/ImageIO
In addition: Warning message:
package 'grDevices' in options("defaultPackages") was not found
Error in dyn.load(file, DLLpath = DLLpath, ...) :
unable to load shared object '/usr/local/Cellar/r/3.1.2_1/R.framework/Versions/3.1/Resources/library/grDevices/libs/grDevices.so':
dlopen(/usr/local/Cellar/r/3.1.2_1/R.framework/Versions/3.1/Resources/library/grDevices/libs/grDevices.so, 6): Symbol not found: __cg_jpeg_resync_to_restart
Referenced from: /System/Library/Frameworks/ImageIO.framework/Versions/A/ImageIO
Expected in: /mediWiki/common/lib/libJPEG.dylib
in /System/Library/Frameworks/ImageIO.framework/Versions/A/ImageIO
In addition: Warning message:
package 'graphics' in options("defaultPackages") was not found
During startup - Warning message:
package 'stats' in options("defaultPackages") was not found
<!--- Start of program --->
[1] 1 2 3 4 5 6 7 8 9 10
<!--- End of program --->
Error: could not find function "dev.cur"
Execution halted
Also the code I hae on the mediawiki page is:
Test
<R>1:10</R>