仅在前缀为的命令或在当前目录中没有Gemfile的bundle install的命令中，才会发生此错误.

This errors happens only with commands prefixed with bundle exec or for bundle install without Gemfile in current dir.

我的假设是您可能正在运行启用bundler的命令，请检查:

My assumption is you might be running commands that enable bundler, check:

which rake

找出正在运行的命令.