incompatible with vim 7.4

[jiangyinzuo]

Here is my vim --version

VIM - Vi IMproved 7.4 (2013 Aug 10, compiled Dec 15 2020 16:44:08)  
Included patches: 1-207, 209-629
Modified by <[email protected]>
Compiled by <[email protected]>
Huge version without GUI.  Features included (+) or not (-):
+acl             +farsi           +mouse_netterm   +syntax
+arabic          +file_in_path    +mouse_sgr       +tag_binary
+autocmd         +find_in_path    -mouse_sysmouse  +tag_old_static
-balloon_eval    +float           +mouse_urxvt     -tag_any_white
-browse          +folding         +mouse_xterm     -tcl
++builtin_terms  -footer          +multi_byte      +terminfo
+byte_offset     +fork()          +multi_lang      +termresponse
+cindent         +gettext         -mzscheme        +textobjects
-clientserver    -hangul_input    +netbeans_intg   +title
-clipboard       +iconv           +path_extra      -toolbar
+cmdline_compl   +insert_expand   +perl            +user_commands
+cmdline_hist    +jumplist        +persistent_undo +vertsplit
+cmdline_info    +keymap          +postscript      +virtualedit
+comments        +langmap         +printer         +visual
+conceal         +libcall         +profile         +visualextra
+cryptv          +linebreak       +python/dyn      +viminfo
+cscope          +lispindent      -python3         +vreplace
+cursorbind      +listcmds        +quickfix        +wildignore
+cursorshape     +localmap        +reltime         +wildmenu
+dialog_con      -lua             +rightleft       +windows
+diff            +menu            +ruby/dyn        +writebackup
+digraphs        +mksession       +scrollbind      -X11
-dnd             +modify_fname    +signs           -xfontset
-ebcdic          +mouse           +smartindent     -xim
+emacs_tags      -mouseshape      -sniff           -xsmp
+eval            +mouse_dec       +startuptime     -xterm_clipboard
+ex_extra        +mouse_gpm       +statusline      -xterm_save
+extra_search    -mouse_jsbterm   -sun_workshop    -xpm

When I enter vim, this plugin echos:

Error detected while processing function qf#OpenQuickfix:
line    5:
E118: Too many arguments for function: getqflist
Press ENTER or type command to continue
Error detected while processing function qf#OpenQuickfix:
line    5:
E15: Invalid expression: getqflist({ 'title': 1 })
Press ENTER or type command to continue

And when I type :copen, it echos:

Error detected while processing /home/jiangyinzuo/plugged/vim-qf/after/ftplugin/qf.vim:
line   41:
E117: Unknown function: win_getid
E116: Invalid arguments for function getwininfo(win_getid()), 0, {}), 'loclist', 0)
E116: Invalid arguments for function get(getwininfo(win_getid()), 0, {}), 'loclist', 0)
E116: Invalid arguments for function get(get(getwininfo(win_getid()), 0, {}), 'loclist', 0)
E15: Invalid expression: get(get(getwininfo(win_getid()), 0, {}), 'loclist', 0)
line  180:
E121: Undefined variable: b:qf_isLoc
E15: Invalid expression: (b:qf_isLoc == 1 && get(g:, 'qf_loclist_window_bottom', 1)) || (b:qf_isLoc == 0 && get(g:, 'qf_window_bottom', 1))
Press ENTER or type command to continue

[romainl]

Well yeah, the README and doc should be clearer about system requirements.

[jiangyinzuo]

It's OK. I have no requirement to use vim-qf on vim7.4. I just reported its incompatibility.