我正在尝试安装rust.vim，我按照说明安装了Vundle，我在Plugin 'rust-lang/rust.vim'之前在我的vim.rc文件中添加了call vundle#end()但是当我尝试加载Vim时我得到了以下
Error detected while processing /Users/jordanbaron/.vim/bundle/newL9/plugin/l9.vim:
line 40:
E174: Command already exists: add ! to replace it
line 89:
E174: Command already exists: add ! to replace it
line 100:
E174: Command already exists: add ! to replace it
line 104:
E174: Command already exists: add ! to replace it
我点击了输入，当我使用`：PluginInstall'它表示完成了错误，这就是日志所说的内容：
[2017-03-14 17:16:10] |
[2017-03-14 17:16:10] Plugin file:///home/gmarik/path/to/plugin |~
[2017-03-14 17:16:10] $ git clone --recursive 'file:///home/gmarik/path/to/plug|~
in' '/Users/jordanbaron/.vim/bundle/plugin' |~
[2017-03-14 17:16:10] > Cloning into '/Users/jordanbaron/.vim/bundle/plugin'...|~
[2017-03-14 17:16:10] > fatal: '/home/gmarik/path/to/plugin' does not appear to|~
be a git repository |~
[2017-03-14 17:16:10] > fatal: Could not read from remote repository. |~
[2017-03-14 17:16:10] > |~
[2017-03-14 17:16:10] > Please make sure you have the correct access rights |~
[2017-03-14 17:16:10] > and the repository exists. |~
[2017-03-14 17:16:10] > |~
[2017-03-14 17:16:11] |~
[2017-03-14 17:16:11] Helptags: |~
[2017-03-14 17:16:11] :helptags /Users/jordanbaron/.vim/bundle/Vundle.vim/doc |~
[2017-03-14 17:16:11] :helptags /Users/jordanbaron/.vim/bundle/vim-fugitive/doc|~
[2017-03-14 17:16:11] :helptags /Users/jordanbaron/.vim/bundle/L9/doc |~
[2017-03-14 17:16:11] :helptags /Users/jordanbaron/.vim/bundle/command-t/doc |~
[2017-03-14 17:16:11] :helptags /Users/jordanbaron/.vim/bundle/newL9/doc |~
[2017-03-14 17:16:11] :helptags /Users/jordanbaron/.vim/bundle/rust.vim/doc |~
[2017-03-14 17:16:11] Helptags: 6 plugins processed