问题
I am trying to install ruby version 2.1.2 using rvm.
Below is the details of the same. Installation of ruby 2.1.2 through rvm is completed with following warnings.
After installation, when doing gem list getting below error.
I am pretty new to ruby on rails. Any leads on how to solve this please?
来源：https://stackoverflow.com/questions/59341667/there-was-an-error-installing-gem-gem-wrapper-rubygems-bundler