I think something went wrong with your attachment...
src/gwt/CMakeFiles/gwt_build.dir/build.make:52: recipe for target 'gwt_build' failed make: *** [gwt_build] Error 1 CMakeFiles/Makefile2:93: recipe for target 'src/gwt/CMakeFiles/gwt_build.dir/all' failed make: *** [src/gwt/CMakeFiles/gwt_build.dir/all] Error 2 Makefile:137: recipe for target 'all' failed make: *** [all] Error 2 ==> ERROR: A failure occurred in package(). Aborting... ==> ERROR: Makepkg was unable to build rstudio-desktop. ==> Restart building rstudio-desktop ? [y/N]
yaourt -S rstudio-desktop-bin