如何将新版本的Ruby引入gem环境

Question

I've installed Ruby 2.2.2 with rbenv. 我已经用rbenv安装了Ruby 2.2.2。 However when I run 但是当我跑步时

gem env

it says that I am using 2.0.0. 它说我正在使用2.0.0。 I read on a different question to run 我读了另一个要运行的问题

sudo gem install -n /usr/local/bin --no-ri --no-rdoc bundler
rbenv rehash
bundle --path=vendor/bundle

However, when running the last line, I receive the error: 但是，在运行最后一行时，我收到错误消息：

Could not locate Gemfile or .bundle/ directory

How do I get the system to use Ruby 2.2.2? 如何使系统使用Ruby 2.2.2？

EDIT: I printed out the contents of my .bash_profile and it had the following two lines: 编辑：我打印出我的.bash_profile的内容，它具有以下两行：

export PATH
export PATH="$HOME/.rbenv/bin:$PATH"

Is it bad that there is a blank export PATH? 空白的导出路径是否很糟糕？ If so, how do I remove it? 如果是这样，如何删除它？

Answer 1

If you have Ruby 2.2.2 installed already, you can use renv global 如果您已经安装了Ruby 2.2.2，则可以使用renv global

rbenv global 2.2.2

Check out the documentation here . 在此处查看文档。

Answer 2

It turns out RVM was still present in the system. 事实证明，RVM仍然存在于系统中。 All I had to do was run: 我要做的就是运行：

rvmsudo rvm implode