find_spec_for_exe': can't find gem bundler (>= 0.a) (Gem::GemNotFoundException)

Question

I used sudo bundle install and that might be the cause of the issue?

Now I have:

• gem -v 2.6.14
• ruby -v

Answer 1

Adding to the many answers, my problem stemmed from wanting to use the docker's ruby as a base, but then using rbenv on top. This screws up a lot of things.

I fixed it in this case by:

• The Gemfile.lock version did need updating - changing the "BUNDLED WITH" to the latest version did at one point change the error message, so may have been required
• in .bash_profile or .bashrc, unsetting the environment variables:

unset GEM_HOME
unset BUNDLE_PATH

After that, rbenv worked fine. Not sure how those env vars were getting loaded in the first place...