find_spec_for_exe’: can’t find gem bundler (>= 0.a) (Gem::GemNotFoundException)
The problem in my case is that the Gemfile.lock file had a BUNDLED_WITH version of 1.16.1 and gem install bundler installed version 2.0.1, so there was a version mismatch when looking to right the folder gem install bundler -v 1.16.1 fixed it Of course, you can also change your Gemfile.lock‘s BUNDLED_WITH with last bundler version … Read more