问题
I'm on Mac OS x 10.8.2 ("Mountain Lion"), and I successfully installed RVM 1.17.8 and its dependencies. I'm able to use it to install Ruby versions using rvm install 1.9.2, but I can't execute rvm use <version> without getting this error:
RVM is not a function, selecting rubies with 'rvm use ...' will not work.
You need to change your terminal emulator preferences to allow login shell.
Sometimes it is required to use `/bin/bash --login` as the command.
Please visit https://rvm.io/integration/gnome-terminal/ for a example.
I have the following in ~/.bash_profile, which I have set to run, using source ~/.bash_profile, whenever a terminal window is launched:
export SVN_EDITOR=vim
PATH=$PATH:$HOME/.rvm/bin # Add RVM to PATH for scripting
[ -r ~/.bashrc ] && source ~/.bashrc
I've tried running source ~/.rvm/scripts/rvm, which runs without returning an error, but I still get the "RVM is not a function" error when I try to use RVM to set the Ruby version within the terminal session.
I also tried uninstalling and reinstalling RVM using rvm implode. I've run out of ideas and I can't seem to find any more solutions online. Help?
回答1:
Make sure your shell initialization files are set up properly:
rvm get head --auto-dotfiles
Then go to your terminal emulator preferences and enable login shell, sometimes it it required to use /bin/bash --login.
Also make sure to fully close terminal and open it fresh after changing the setting.
回答2:
The solution ended up being on the RVM Help & Support page, in the ".bash_profile not being loaded on OSX" section. It seems that the issue was that I had my terminal set to open with the "default login shell" and when I changed it to instead open with the command "/usr/bash" in Preferences/Setup, "source ~/.rvm/scripts/rvm" started working, and rvm is now being recognized as a function.
回答3:
look for .profile, if exists, remove it! loof for .zshrc, if exists, remove it! Now, use vi to edit your .bash_profile, add this line
[[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm"
Now, close all console services and open again, make a test using
$ rvm gemset use global
Work fine for me!
来源：https://stackoverflow.com/questions/14289217/im-getting-rvm-is-not-a-function-error-on-mac-os-x-and-no-posted-solutions-w