Rstudio Server vs El Capitan

I am trying to install RStudio Server in OSX El Capitan. I did these steps from terminal brew install openssl brew install homebrew/science/rstudio-server I have the login window at localhost:8787 but I can't login. If I run sudo rstudio-server status then I get Could not find service "com.rstudio.launchd.rserver" in domain for To check the installation I run sudo rstudio-server verify-installation and I get 21 Oct 2016 05:11:44 [rserver] ERROR system error 48 (Address already in use); OCCURRED AT: rstudio::core::Error rstudio::core::http::initTcpIpAcceptor(SocketAcceptorService &, const std::string &, const std::string &) /tmp/rstudio-server-20161017-46697-nr3wo3/rstudio- 0.99.902/src/cpp/core/include/core/http/TcpIpSocketUtils.hpp:103; LOGGED FROM: int main(int, char *const *) /tmp/rstudio-server-20161017-46697-nr3wo3/rstudio-0.99.902/src/cpp/server/ServerMain.cpp:438 How can I fix this?