dlopen(/Library/Frameworks/R.framework/Versions/3.1/Resources/library/tcltk/libs/tcltk.so, 10): Library not loaded: /usr/local/lib/libtcl8.6.dylib Referenced from: /Library/Frameworks/R.framework/Versions/3.1/Resources/library/tcltk/libs/tcltk.so
というエラーが出る。
brew remove tcl-tk brew -v install tcl-tk --with-tk