安装Nerdtree时出现问题

Question

根据nerdtree的安装说明，我需要安装pathogen.vim才能安装nerdtree。为了安装pathogen.vim，我按照病原体安装说明进行了安装，并执行了以下操作：

~$ mkdir -p ~/.vim/autoload ~/.vim/bundle; \
> curl -so ~/.vim/autoload/pathogen.vim \
> <link to github>

在这里创建了pathogen.vim：

~/.vim/autoload$ ls

pathogen.vim  … … …

然后，我按照病原体安装说明进行操作：

Add this to your vimrc:

call pathogen#infect()

==

~$ cat .vimrc
…
…
"For pathogen(a vim installer):
call pathogen#infect()

然后按照nerdtree安装说明进行安装：

pathogen.vim is the recommended way to install nerdtree.

cd ~/.vim/bundle
git clone <link to github>

Then reload vim, run :helptags, and check out :help NERD_tree.txt. 

我尝试这样安装nerdtree：

~/.vim/bundle$ git clone <link to github>
Cloning into 'nerdtree'...
remote: Counting objects: 2426, done.
remote: Compressing objects: 100% (801/801), done.
remote: Total 2426 (delta 1091), reused 2354 (delta 1025)
Receiving objects: 100% (2426/2426), 912.52 KiB | 573 KiB/s, done.
Resolving deltas: 100% (1091/1091), done.
$

它产生了：

~/.vim$ cd bundle
~/.vim/bundle$ ls
nerdtree

但是我不能让nerdtree去工作。当我尝试这样做时：

~$ cd rails_projects/demo_app22/
~/rails_projects/demo_app22$ mvim .
~/rails_projects/demo_app22$ 

...and，然后这样：

:NERDtree

我得到了错误：

E492: Not an editor command: NERDtree

当我尝试:helptags时，我得到了错误：

E472: Argument required

Answer 1

查看此脚本以装点Vim for Rails：http://www.vim.org/scripts/script.php?script_id=1567