I had no problem to follow the instructions given at InstallR on OS X with external R installation to get an external R working with Mathematica 10.0.0.0. However when Mathematica was updated to 10.0.1.0, an error msg came out.
The commands that I issued were:
Needs["RLink`"] SetEnvironment["DYLD_LIBRARY_PATH" -> "/Library/Frameworks/R.framework/Resources/lib"]; InstallR["RHomeLocation" -> "/Library/Frameworks/R.framework/Resources"];
The error msg is
InstallR::rundetctd: "Failed to detect the R version from the specified path to R home directory. Try using the "RVersion" option to specify the R version explicitly"
I have checked InstallR options and did not find "RVersion" there. Am I missing something?