rbenv is a tool for simple Ruby version management.
To install rbenv, please refer to the Readme.
See Why rbenv?
The string read from a
.ruby-version file must match the name of an existing
~/.rbenv/versions/. You can see the list of installed Ruby
Other version managers might allow fuzzy version matching on the string read
.ruby-version file, e.g. they might allow "1.9.3" (without patch suffix)
to match the latest Ruby 1.9.3 release. rbenv will not support this, because
such behavior is unpredictable and therefore harmful.
rbenv is in your PATH:
Check that rbenv's shims directory is in PATH:
echo $PATH | grep --color=auto "$(rbenv root)/shims"
If not, see the
rbenv init step in installation instructions.
Please search existing issues and open a new one if you can't find any answers. Here's a script that dumps information about your current environment; you can use Gist to paste it online and share the URL to it in your bug report:
curl -s https://gist.githubusercontent.com/mislav/4728286/raw/rbenv-doctor.sh | bash -x 2>&1
Typically it's one of the following:
~/.bashrcon Ubuntu Desktop)
See Unix shell initialization for more info about how config files get loaded.
ERROR: rbenv/libexec/rbenv-version-file-read: line 23: /dev/fd/62: No such file or directory
Under Linux, the fix tends to be ensuring that udev is running. Or manually, doing the following:
sudo ln -s /proc/self/fd /dev/fd
Under Docker, add this to your
RUN ln -s /proc/self/fd /dev/fd
Last edited by Scott Steele,