[metasploit]msf启动：msf failed to load and returned this error 'cannot load such file -- bundler/setup'

打算更新一下kali里面的msf时遇到以下错误：

root@kali:~/Desktop# sudo msfconsole
[*] Bundler failed to load and returned this error:

   'cannot load such file -- bundler/setup'

[*] You may need to uninstall or upgrade bundler

经查找，默认安装bundler的最新版本为2.14。
msfconsole依赖的版本是1.17.3，所以需要安装旧版本以继续
执行以下命令安装并更新：

gem install bundler:1.17.3
gem update --system