https://github.com/spf13/spf13-vim/issues/27
Just move line 41 "call s:VimDebuggerLoad()" to line 77, between "endfunction" and "function! g:__dbg_WatchFoldText()"
Just move line 41 "call s:VimDebuggerLoad()" to line 77, between "endfunction" and "function! g:__dbg_WatchFoldText()"