在 vim 中，经常当我执行一个 ':help ' 命令时，我得到一个错误。这是我在执行 ':help tags' 时看到的错误，例如：
"tagsrch.txt.gz" [readonly][noeol] 42L, 11288C
Error detected while processing function gzip#read:
line 51:
E303: Unable to open swap file for "/usr/share/vim/vim74/doc/tagsrch.txt.gz", recovery impossible
41 fewer lines
Press ENTER or type command to continue
当我按下回车键时，会根据需要出现帮助，但这仍然很麻烦。我做错了什么？我的 google-foo 显然太弱了，因为我没有看到其他人抱怨这个。
这是因为我为我的交换目录设置了这个吗？
set directory=~/.vim/swap,.
让我知道粘贴我的整个 vimrc 是否有帮助。我在 rhel7 上使用 vim 7.4，以防万一。
这是我的~/.vimrc：
" vim:softtabstop=4:shiftwidth=4:et
" Tab preferences
set shiftwidth=4
set softtabstop=4
set autoindent
set expandtab
execute pathogen#infect()
" Where to store swap files. By default, they will go into ~/.vim/swap, but
" if that doesn't work, they will go in cwd.
set directory=~/.vim/swap,.
filetype plugin indent on " enables filetype indent specific plugins
" Instructions on how to tab complete filenames.
" set wildmode=longest,list,full
set wildmode=longest,list
set wildmenu
" In case there are vim modelines at the top of the file, as there
" is with this one.
set modeline
" Always show the status line.
set laststatus=2
" Look for a tags file.
set tags=./tags,tags;
" Also search for .git/tags files.
set tags^=./.git/tags,*/.git/tags;~
" Make Ctrl-] show the list of options by default.
nnoremap <C-]> g<C-]>
nnoremap <C-w><C-]> <C-w>g<C-]>
" Colors
" Have syntax highlighting in terminals which can display colours:
if has('syntax') && (&t_Co > 2)
syntax on
else
syntax off
endif
set background=dark
set hlsearch
set incsearch
" I so often type teh instead of the.
abbreviate teh the
" To help vim deal with pasting text
:map <F9> :set invpaste <CR>
set pt=<F9>
" Toggle vim's spell checker with <F5>
:map <F5> :setlocal spell! spelllang=en_us<cr>
" Shortcuts for c code.
map! ,bc /* */^[hhi
map! ,bz #if 0^M#endif /* 0 */^[O
" Ignore whitespace when diffing files.
map ,iw :set diffopt+=iwhite<CR>
set path^=/home/bneradt/work/trafficserver/**