diff --git a/autoload/SpaceVim.vim b/autoload/SpaceVim.vim
index 5fcb7ea66..5ddced0c7 100644
--- a/autoload/SpaceVim.vim
+++ b/autoload/SpaceVim.vim
@@ -1744,7 +1744,7 @@ function! s:parser_argv() abort
     " if use embed nvim
     " for exmaple: neovim-qt
     " or only run vim/neovim without argvs
-    if len(v:argv) == 1
+    if len(v:argv) == 1 || (len(v:argv) == 2 && index(v:argv, '--embed') == 1)
       return [0]
     elseif index(v:argv, '--embed') !=# -1 
       if  v:argv[-1] =~# '/$'
diff --git a/autoload/SpaceVim/default.vim b/autoload/SpaceVim/default.vim
index 35551e4a1..0a582e557 100644
--- a/autoload/SpaceVim/default.vim
+++ b/autoload/SpaceVim/default.vim
@@ -146,7 +146,7 @@ endfunction
 "}}}
 
 function! SpaceVim#default#layers() abort
-  call SpaceVim#logger#debug('init default layer list.')
+  call SpaceVim#logger#info('init default layer list.')
   call SpaceVim#layers#load('autocomplete')
   call SpaceVim#layers#load('checkers')
   call SpaceVim#layers#load('format')
@@ -156,10 +156,11 @@ function! SpaceVim#default#layers() abort
   call SpaceVim#layers#load('core#banner')
   call SpaceVim#layers#load('core#statusline')
   call SpaceVim#layers#load('core#tabline')
+  call SpaceVim#logger#info('layer list init done')
 endfunction
 
 function! SpaceVim#default#keyBindings() abort
-  call SpaceVim#logger#debug('init default key bindings.')
+  call SpaceVim#logger#info('init default key bindings.')
   xnoremap <silent> <Leader>y :<C-u>call clipboard#yank()<cr>
   nnoremap <expr> <Leader>p clipboard#paste('p')
   nnoremap <expr> <Leader>P clipboard#paste('P')
@@ -271,7 +272,7 @@ function! SpaceVim#default#keyBindings() abort
   nnoremap <silent><M-5> :<C-u>call <SID>tobur(5)<CR>
   nnoremap <silent><M-Right> :<C-U>call <SID>tobur("next")<CR>
   nnoremap <silent><M-Left> :<C-U>call <SID>tobur("prev")<CR>
-
+  call SpaceVim#logger#info('default key binding init done')
 endfunction
 
 fu! s:tobur(num) abort
diff --git a/autoload/SpaceVim/layers.vim b/autoload/SpaceVim/layers.vim
index a0e2b4c41..95c986cd6 100644
--- a/autoload/SpaceVim/layers.vim
+++ b/autoload/SpaceVim/layers.vim
@@ -74,10 +74,12 @@ function! SpaceVim#layers#load(layer, ...) abort
   elseif empty(a:layer) || type(a:layer) !=# type('')
     return
   endif
+  call SpaceVim#logger#info('load layer:' . a:layer)
   let loadable = 1
   try
     let loadable = SpaceVim#layers#{a:layer}#loadable()
   catch /^Vim\%((\a\+)\)\=:E117/
+    call SpaceVim#logger#info(a:layer . ' layer do not implement loadable function')
   endtry
   if index(s:enabled_layers, a:layer) == -1
     if loadable
@@ -94,6 +96,7 @@ function! SpaceVim#layers#load(layer, ...) abort
       call SpaceVim#layers#{a:layer}#set_variable(a:1)
       let s:layers_vars[a:layer] = a:1
     catch /^Vim\%((\a\+)\)\=:E117/
+      call SpaceVim#logger#info(a:layer . ' layer do not implement set_variable function')
     endtry
   endif
   if a:0 > 0 && type(a:1) == 1 
@@ -101,6 +104,7 @@ function! SpaceVim#layers#load(layer, ...) abort
       call SpaceVim#layers#load(l)
     endfor
   endif
+  call SpaceVim#logger#info('layer loaded.')
 endfunction
 
 function! SpaceVim#layers#disable(layer) abort
diff --git a/autoload/SpaceVim/layers/VersionControl.vim b/autoload/SpaceVim/layers/VersionControl.vim
index cb40634eb..acddb748b 100644
--- a/autoload/SpaceVim/layers/VersionControl.vim
+++ b/autoload/SpaceVim/layers/VersionControl.vim
@@ -21,6 +21,10 @@ scriptencoding utf-8
 "   SPC g .         version control transient state
 " <
 
+if exists('s:CMP')
+  finish
+endif
+
 let s:CMP = SpaceVim#api#import('vim#compatible')
 
 let s:enable_gtm_status = 0
@@ -512,6 +516,12 @@ function! s:git_transient_state() abort
   call state.open()
 endfunction
 
+function! SpaceVim#layers#VersionControl#loadable() abort
+
+  return 1
+
+endfunction
+
 " function() wrapper {{{
 if v:version > 703 || v:version == 703 && has('patch1170')
   function! s:_function(fstr) abort
diff --git a/autoload/SpaceVim/layers/autocomplete.vim b/autoload/SpaceVim/layers/autocomplete.vim
index e64e23964..76a2583ab 100644
--- a/autoload/SpaceVim/layers/autocomplete.vim
+++ b/autoload/SpaceVim/layers/autocomplete.vim
@@ -313,5 +313,9 @@ endfunction
 function! s:restore_sequence_delay() abort
   let &timeoutlen = s:timeoutlen
 endfunction
+function! SpaceVim#layers#autocomplete#loadable() abort
 
+  return 1
+
+endfunction
 " vim:set et sw=2 cc=80:
diff --git a/autoload/SpaceVim/layers/chat.vim b/autoload/SpaceVim/layers/chat.vim
index 52d2cd2ae..aae76859f 100644
--- a/autoload/SpaceVim/layers/chat.vim
+++ b/autoload/SpaceVim/layers/chat.vim
@@ -67,3 +67,9 @@ function! SpaceVim#layers#chat#health() abort
   return 1
 
 endfunction
+
+function! SpaceVim#layers#chat#loadable() abort
+
+  return 1
+
+endfunction
diff --git a/autoload/SpaceVim/layers/checkers.vim b/autoload/SpaceVim/layers/checkers.vim
index a7a7468b6..58bf80bf7 100644
--- a/autoload/SpaceVim/layers/checkers.vim
+++ b/autoload/SpaceVim/layers/checkers.vim
@@ -64,6 +64,12 @@ function! SpaceVim#layers#checkers#plugins() abort
   return plugins
 endfunction
 
+function! SpaceVim#layers#checkers#loadable() abort
+
+  return 1
+
+endfunction
+
 function! SpaceVim#layers#checkers#set_variable(var) abort
 
   let s:show_cursor_error = get(a:var, 'show_cursor_error', 1)
diff --git a/autoload/SpaceVim/layers/colorscheme.vim b/autoload/SpaceVim/layers/colorscheme.vim
index 1046f8881..11fba0c15 100644
--- a/autoload/SpaceVim/layers/colorscheme.vim
+++ b/autoload/SpaceVim/layers/colorscheme.vim
@@ -41,6 +41,10 @@
 "
 " SpaceVim is not gonna fix them since these should be in charge of each author.
 
+if exists('s:JSON')
+  finish
+endif
+
 let s:JSON = SpaceVim#api#import('data#json')
 
 function! SpaceVim#layers#colorscheme#plugins() abort
@@ -170,6 +174,12 @@ function! SpaceVim#layers#colorscheme#health() abort
   return 1
 endfunction
 
+function! SpaceVim#layers#colorscheme#loadable() abort
+
+  return 1
+
+endfunction
+
 " function() wrapper
 if v:version > 703 || v:version == 703 && has('patch1170')
   function! s:_function(fstr) abort
diff --git a/autoload/SpaceVim/layers/core.vim b/autoload/SpaceVim/layers/core.vim
index d3fcd905c..bfd9a4563 100644
--- a/autoload/SpaceVim/layers/core.vim
+++ b/autoload/SpaceVim/layers/core.vim
@@ -1223,4 +1223,10 @@ function! s:close_current_tab() abort
   endif
 endfunction
 
+function! SpaceVim#layers#core#loadable() abort
+
+  return 1
+
+endfunction
+
 " vim:set et sw=2 cc=80:
diff --git a/autoload/SpaceVim/layers/core/banner.vim b/autoload/SpaceVim/layers/core/banner.vim
index 02fd6c66e..e79ed6012 100644
--- a/autoload/SpaceVim/layers/core/banner.vim
+++ b/autoload/SpaceVim/layers/core/banner.vim
@@ -242,4 +242,16 @@ function! SpaceVim#layers#core#banner#health() abort
   return 1
 endfunction
 
+function! SpaceVim#layers#core#banner#loadable() abort
+
+  return 1
+
+endfunction
+
+function! SpaceVim#layers#core#banner#plugins() abort
+
+  return []
+
+endfunction
+
 " vim:set et sw=2:
diff --git a/autoload/SpaceVim/layers/core/statusline.vim b/autoload/SpaceVim/layers/core/statusline.vim
index ace158f22..7cf448ca4 100644
--- a/autoload/SpaceVim/layers/core/statusline.vim
+++ b/autoload/SpaceVim/layers/core/statusline.vim
@@ -131,6 +131,18 @@ if has('nvim-0.10.0')
     return v:lua.require('spacevim.plugin.statusline').health()
   endfunction
 
+  function! SpaceVim#layers#core#statusline#loadable() abort
+
+    return 1
+
+  endfunction
+
+  function! SpaceVim#layers#core#statusline#plugins() abort
+
+    return []
+
+  endfunction
+
   finish
 endif
 
diff --git a/autoload/SpaceVim/layers/core/tabline.vim b/autoload/SpaceVim/layers/core/tabline.vim
index 0b31772b0..e63bc25db 100644
--- a/autoload/SpaceVim/layers/core/tabline.vim
+++ b/autoload/SpaceVim/layers/core/tabline.vim
@@ -89,6 +89,91 @@ endif
 
 let g:_spacevim_tabline_loaded = 1
 
+let s:enable_default_mappings = 1
+
+if has('nvim-0.9.0')
+  function! SpaceVim#layers#core#tabline#get() abort
+    return v:lua.require('spacevim.plugin.tabline').get()
+  endfunction
+
+  function! SpaceVim#layers#core#tabline#config() abort
+    lua require('spacevim.plugin.tabline').enable()
+    set tabline=%!v:lua.require('spacevim.plugin.tabline').get()
+    augroup SpaceVim_tabline
+      autocmd!
+      autocmd ColorScheme * lua require('spacevim.plugin.tabline').def_colors()
+    augroup END
+    if s:enable_default_mappings
+      nnoremap <silent> <C-S-Left> <cmd>lua require('spacevim.plugin.tabline').move_to_previous()<CR>
+      nnoremap <silent> <C-S-Right> <cmd>lua require('spacevim.plugin.tabline').move_to_next()<CR>
+    endif
+    let shift_keys = {
+          \  '1': '!',
+          \  '2': '@',
+          \  '3': '#',
+          \  '4': '$',
+          \  '5': '%',
+          \  '6': '^',
+          \  '7': '&',
+          \  '8': '*',
+          \  '9': '(',
+          \  '0': ')'
+          \}
+
+    for i in range(1, 20)
+      let key = i % 10
+
+      if i > 10
+        let key = shift_keys[string(key)]
+      endif
+
+      exe "call SpaceVim#mapping#def('nmap <silent>', '<leader>" . key
+            \ . "', ':call SpaceVim#layers#core#tabline#jump("
+            \ . i . ")<cr>', 'Switch to airline tab " . i
+            \ . "', '', 'tabline index " . i . "')"
+    endfor
+  endfunction
+
+  function! SpaceVim#layers#core#tabline#jump(id, ...) abort
+    call SpaceVim#logger#info(a:id)
+    call SpaceVim#logger#info(string(a:000))
+    lua require('spacevim.plugin.tabline').jump(vim.api.nvim_eval('a:id'))
+  endfunction
+
+  function! SpaceVim#layers#core#tabline#def_colors() abort
+    call v:lua.require('spacevim.plugin.tabline').def_colors()
+  endfunction
+
+  function! SpaceVim#layers#core#tabline#health() abort
+    call SpaceVim#layers#core#tabline#config()
+    return 1
+  endfunction
+
+  function! SpaceVim#layers#core#tabline#loadable() abort
+
+    return 1
+
+  endfunction
+
+  function! SpaceVim#layers#core#tabline#plugins() abort
+
+    return []
+
+  endfunction
+
+  function! SpaceVim#layers#core#tabline#set_variable(var) abort
+    let s:enable_default_mappings = get(a:var, 'enable_default_mappings', s:enable_default_mappings)
+  endfunction
+
+  function! SpaceVim#layers#core#tabline#get_options() abort
+
+    return ['enable_default_mappings']
+
+  endfunction
+  finish
+endif
+
+
 " loadding APIs {{{
 let s:MESSLETTERS = SpaceVim#api#import('messletters')
 let s:FILE = SpaceVim#api#import('file')
@@ -122,7 +207,6 @@ let [s:lsep , s:rsep] = ['', '']
 
 let [s:ilsep , s:irsep] = ['', '']
 
-let s:enable_default_mappings = 1
 
 function! s:get_no_empty(a, b) abort
   if empty(a:a)
@@ -566,18 +650,6 @@ function! SpaceVim#layers#core#tabline#get() abort
 endfunction
 
 function! SpaceVim#layers#core#tabline#config() abort
-  if has('nvim-0.9.5')
-    lua require('spacevim.plugin.tabline').enable()
-    set tabline=%!v:lua.require('spacevim.plugin.tabline').get()
-    augroup SpaceVim_tabline
-      autocmd!
-      autocmd ColorScheme * lua require('spacevim.plugin.tabline').def_colors()
-    augroup END
-    if s:enable_default_mappings
-      nnoremap <silent> <C-S-Left> <cmd>lua require('spacevim.plugin.tabline').move_to_previous()<CR>
-      nnoremap <silent> <C-S-Right> <cmd>lua require('spacevim.plugin.tabline').move_to_next()<CR>
-    endif
-  else
     let [s:lsep , s:rsep] = get(s:separators, g:spacevim_statusline_separator, s:separators['arrow'])
     let [s:ilsep , s:irsep] = get(s:i_separators, g:spacevim_statusline_iseparator, s:separators['arrow'])
     set tabline=%!SpaceVim#layers#core#tabline#get()
@@ -591,7 +663,6 @@ function! SpaceVim#layers#core#tabline#config() abort
       nnoremap <silent> <C-S-Right> :call <SID>move_tabpage(1)<CR>
     endif
 
-  endif
   let shift_keys = {
         \  '1': '!',
         \  '2': '@',
@@ -622,10 +693,6 @@ endfunction
 function! SpaceVim#layers#core#tabline#jump(id, ...) abort
   call SpaceVim#logger#info(a:id)
   call SpaceVim#logger#info(string(a:000))
-  if has('nvim-0.9.5')
-    lua require('spacevim.plugin.tabline').jump(vim.api.nvim_eval('a:id'))
-    return
-  endif
   if len(s:shown_items) >= a:id
     let item = s:shown_items[a:id - 1]
     let mouse = get(a:000, 1, '')
@@ -683,6 +750,18 @@ function! SpaceVim#layers#core#tabline#health() abort
   return 1
 endfunction
 
+function! SpaceVim#layers#core#tabline#loadable() abort
+
+  return 1
+
+endfunction
+
+function! SpaceVim#layers#core#tabline#plugins() abort
+
+  return []
+
+endfunction
+
 function! SpaceVim#layers#core#tabline#set_variable(var) abort
   let s:enable_default_mappings = get(a:var, 'enable_default_mappings', s:enable_default_mappings)
 endfunction
diff --git a/autoload/SpaceVim/layers/edit.vim b/autoload/SpaceVim/layers/edit.vim
index 9c5085788..93b2e1291 100644
--- a/autoload/SpaceVim/layers/edit.vim
+++ b/autoload/SpaceVim/layers/edit.vim
@@ -1069,3 +1069,9 @@ endfunction
 function! SpaceVim#layers#edit#add_ft_head_tamplate(ft, tamp) abort
   call extend(s:ft_head_tp, {a:ft : a:tamp})
 endfunction
+
+function! SpaceVim#layers#edit#loadable() abort
+
+  return 1
+
+endfunction
diff --git a/autoload/SpaceVim/layers/foldsearch.vim b/autoload/SpaceVim/layers/foldsearch.vim
index 9469af6c1..df15a44c4 100644
--- a/autoload/SpaceVim/layers/foldsearch.vim
+++ b/autoload/SpaceVim/layers/foldsearch.vim
@@ -40,6 +40,30 @@ function! SpaceVim#layers#foldsearch#health() abort
   return 1
 endfunction
 
+function! SpaceVim#layers#foldsearch#plugins() abort
+
+  return []
+
+endfunction
+
+function! SpaceVim#layers#foldsearch#set_variable(var) abort
+
+  
+
+endfunction
+
+function! SpaceVim#layers#foldsearch#get_options() abort
+
+  return []
+
+endfunction
+
+function! SpaceVim#layers#foldsearch#loadable() abort
+
+  return 1
+
+endfunction
+
 let s:filename = expand('<sfile>:~')
 let s:lnum = expand('<slnum>') + 2
 function! SpaceVim#layers#foldsearch#config()
diff --git a/autoload/SpaceVim/layers/format.vim b/autoload/SpaceVim/layers/format.vim
index 65da67f36..02f57b6fe 100644
--- a/autoload/SpaceVim/layers/format.vim
+++ b/autoload/SpaceVim/layers/format.vim
@@ -134,3 +134,9 @@ function! s:format() abort
     endif
   endif
 endfunction
+
+function! SpaceVim#layers#format#loadable() abort
+
+  return 1
+
+endfunction
diff --git a/autoload/SpaceVim/layers/git.vim b/autoload/SpaceVim/layers/git.vim
index 5f0382a21..e1986180b 100644
--- a/autoload/SpaceVim/layers/git.vim
+++ b/autoload/SpaceVim/layers/git.vim
@@ -194,4 +194,10 @@ function! SpaceVim#layers#git#health() abort
 
 endfunction
 
+function! SpaceVim#layers#git#loadable() abort
+
+  return 1
+
+endfunction
+
 " vim:set et sw=2 cc=80:
diff --git a/autoload/SpaceVim/layers/github.vim b/autoload/SpaceVim/layers/github.vim
index 823d94315..08be8502f 100644
--- a/autoload/SpaceVim/layers/github.vim
+++ b/autoload/SpaceVim/layers/github.vim
@@ -37,16 +37,16 @@ function! SpaceVim#layers#github#plugins() abort
   return [
         \ [g:_spacevim_root_dir . 'bundle/github-issues.vim', {'merged' : 0, 'if' : has('python')}],
         \ [g:_spacevim_root_dir . 'bundle/vim-github-dashboard', {
-          \ 'merged' : 0,
-          \ 'if' : has('ruby'),
-          \ }],
-          \ ['tyru/open-browser-github.vim',  {
-            \ 'depends': 'open-browser.vim',
-            \ 'on_cmd': ['OpenGithubFile', 'OpenGithubIssue', 'OpenGithubPullReq'],
-            \ }],
-            \ [g:_spacevim_root_dir . 'bundle/github.vim', {'merged' : 0}],
-            \ ['lambdalisue/vim-gista', {'merged' : 0}],
-            \ ]
+        \ 'merged' : 0,
+        \ 'if' : has('ruby'),
+        \ }],
+        \ ['tyru/open-browser-github.vim',  {
+        \ 'depends': 'open-browser.vim',
+        \ 'on_cmd': ['OpenGithubFile', 'OpenGithubIssue', 'OpenGithubPullReq'],
+        \ }],
+        \ [g:_spacevim_root_dir . 'bundle/github.vim', {'merged' : 0}],
+        \ ['lambdalisue/vim-gista', {'merged' : 0}],
+        \ ]
 endfunction
 
 function! SpaceVim#layers#github#config() abort
@@ -127,4 +127,15 @@ function! s:update_stared_repo_list() abort
     call add(g:unite_source_menu_menus.MyStarredrepos.command_candidates, [description,cmd])
   endfor
   return 1
-  endf
+endfunction
+
+
+function! SpaceVim#layers#github#set_variable(var) abort
+
+endfunction
+
+function! SpaceVim#layers#github#loadable() abort
+
+  return 1
+
+endfunction
diff --git a/autoload/SpaceVim/layers/gtags.vim b/autoload/SpaceVim/layers/gtags.vim
index 5d1d64524..238d34016 100644
--- a/autoload/SpaceVim/layers/gtags.vim
+++ b/autoload/SpaceVim/layers/gtags.vim
@@ -114,6 +114,12 @@ function! SpaceVim#layers#gtags#health() abort
   return 1
 endfunction
 
+function! SpaceVim#layers#gtags#loadable() abort
+
+  return 1
+
+endfunction
+
 function! SpaceVim#layers#gtags#get_options() abort
 
   return ['gtagslabel', 'ctags_bin']
diff --git a/autoload/SpaceVim/layers/lang/c.vim b/autoload/SpaceVim/layers/lang/c.vim
index dde385fb8..45b6242d0 100644
--- a/autoload/SpaceVim/layers/lang/c.vim
+++ b/autoload/SpaceVim/layers/lang/c.vim
@@ -524,3 +524,9 @@ function! SpaceVim#layers#lang#c#health() abort
   call SpaceVim#layers#lang#c#config()
   return 1
 endfunction
+
+function! SpaceVim#layers#lang#c#loadable() abort
+
+  return 1
+
+endfunction
diff --git a/autoload/SpaceVim/layers/lang/clojure.vim b/autoload/SpaceVim/layers/lang/clojure.vim
index 90b8a19c9..d63983df3 100644
--- a/autoload/SpaceVim/layers/lang/clojure.vim
+++ b/autoload/SpaceVim/layers/lang/clojure.vim
@@ -167,3 +167,9 @@ function! SpaceVim#layers#lang#clojure#health() abort
   call SpaceVim#layers#lang#clojure#config()
   return 1
 endfunction
+
+function! SpaceVim#layers#lang#clojure#loadable() abort
+
+  return 1
+
+endfunction
diff --git a/autoload/SpaceVim/layers/lang/java.vim b/autoload/SpaceVim/layers/lang/java.vim
index c8c8f1de5..1dd3ee781 100644
--- a/autoload/SpaceVim/layers/lang/java.vim
+++ b/autoload/SpaceVim/layers/lang/java.vim
@@ -393,3 +393,9 @@ function! SpaceVim#layers#lang#java#health() abort
   call SpaceVim#layers#lang#java#config()
   return 1
 endfunction
+
+function! SpaceVim#layers#lang#java#loadable() abort
+
+  return 1
+
+endfunction
diff --git a/autoload/SpaceVim/layers/lang/lua.vim b/autoload/SpaceVim/layers/lang/lua.vim
index 6d6fb143d..95db64b01 100644
--- a/autoload/SpaceVim/layers/lang/lua.vim
+++ b/autoload/SpaceVim/layers/lang/lua.vim
@@ -174,3 +174,9 @@ function! SpaceVim#layers#lang#lua#health() abort
   call SpaceVim#layers#lang#lua#config()
   return 1
 endfunction
+
+function! SpaceVim#layers#lang#lua#loadable() abort
+
+  return 1
+
+endfunction
diff --git a/autoload/SpaceVim/layers/lang/markdown.vim b/autoload/SpaceVim/layers/lang/markdown.vim
index df9a801ab..0fc4a5200 100644
--- a/autoload/SpaceVim/layers/lang/markdown.vim
+++ b/autoload/SpaceVim/layers/lang/markdown.vim
@@ -225,3 +225,9 @@ function! SpaceVim#layers#lang#markdown#health() abort
   call SpaceVim#layers#lang#markdown#config()
   return 1
 endfunction
+
+function! SpaceVim#layers#lang#markdown#loadable() abort
+
+  return 1
+
+endfunction
diff --git a/autoload/SpaceVim/layers/lang/python.vim b/autoload/SpaceVim/layers/lang/python.vim
index f872714eb..0797f8915 100644
--- a/autoload/SpaceVim/layers/lang/python.vim
+++ b/autoload/SpaceVim/layers/lang/python.vim
@@ -344,3 +344,8 @@ function! SpaceVim#layers#lang#python#health() abort
   call SpaceVim#layers#lang#python#config()
   return 1
 endfunction
+function! SpaceVim#layers#lang#python#loadable() abort
+
+  return 1
+
+endfunction
diff --git a/autoload/SpaceVim/layers/lang/scheme.vim b/autoload/SpaceVim/layers/lang/scheme.vim
index 6c8a5cdbf..6ff6cc4a0 100644
--- a/autoload/SpaceVim/layers/lang/scheme.vim
+++ b/autoload/SpaceVim/layers/lang/scheme.vim
@@ -48,6 +48,13 @@ endif
 " <
 "
 
+function! SpaceVim#layers#lang#scheme#plugins() abort
+
+  return []
+
+endfunction
+
+
 function! SpaceVim#layers#lang#scheme#config() abort
   if s:scheme_dialect ==# 'mit-scheme'
     if has('win32')
@@ -106,3 +113,9 @@ function! SpaceVim#layers#lang#scheme#health() abort
   call SpaceVim#layers#lang#scheme#config()
   return 1
 endfunction
+
+function! SpaceVim#layers#lang#scheme#loadable() abort
+
+  return 1
+
+endfunction
diff --git a/autoload/SpaceVim/layers/lang/sh.vim b/autoload/SpaceVim/layers/lang/sh.vim
index e4da931f8..b7b135aaa 100644
--- a/autoload/SpaceVim/layers/lang/sh.vim
+++ b/autoload/SpaceVim/layers/lang/sh.vim
@@ -92,3 +92,9 @@ function! SpaceVim#layers#lang#sh#health() abort
   call SpaceVim#layers#lang#sh#config()
   return 1
 endfunction
+
+function! SpaceVim#layers#lang#sh#loadable() abort
+
+  return 1
+
+endfunction
diff --git a/autoload/SpaceVim/layers/lang/sql.vim b/autoload/SpaceVim/layers/lang/sql.vim
index 17337002f..42ec9ce0a 100644
--- a/autoload/SpaceVim/layers/lang/sql.vim
+++ b/autoload/SpaceVim/layers/lang/sql.vim
@@ -83,3 +83,8 @@ function! SpaceVim#layers#lang#sql#health() abort
   call SpaceVim#layers#lang#sql#plugins()
   return 1
 endfunction
+function! SpaceVim#layers#lang#sql#loadable() abort
+
+  return 1
+
+endfunction
diff --git a/autoload/SpaceVim/layers/lang/toml.vim b/autoload/SpaceVim/layers/lang/toml.vim
index 9e5da9c7a..1558b932b 100644
--- a/autoload/SpaceVim/layers/lang/toml.vim
+++ b/autoload/SpaceVim/layers/lang/toml.vim
@@ -33,3 +33,15 @@ function! SpaceVim#layers#lang#toml#health() abort
   call SpaceVim#layers#lang#toml#plugins()
   return 1
 endfunction
+
+function! SpaceVim#layers#lang#toml#loadable() abort
+
+  return 1
+
+endfunction
+
+function! SpaceVim#layers#lang#toml#set_variable(var) abort
+
+  
+
+endfunction
diff --git a/autoload/SpaceVim/layers/lang/vim.vim b/autoload/SpaceVim/layers/lang/vim.vim
index b060cf0f1..7eb4f179f 100644
--- a/autoload/SpaceVim/layers/lang/vim.vim
+++ b/autoload/SpaceVim/layers/lang/vim.vim
@@ -218,3 +218,9 @@ function! SpaceVim#layers#lang#vim#health() abort
   call SpaceVim#layers#lang#vim#config()
   return 1
 endfunction
+
+function! SpaceVim#layers#lang#vim#loadable() abort
+
+  return 1
+
+endfunction
diff --git a/autoload/SpaceVim/layers/lsp.vim b/autoload/SpaceVim/layers/lsp.vim
index b5d0619dd..4f4db4154 100644
--- a/autoload/SpaceVim/layers/lsp.vim
+++ b/autoload/SpaceVim/layers/lsp.vim
@@ -52,6 +52,12 @@ function! SpaceVim#layers#lsp#health() abort
   return 1
 endfunction
 
+function! SpaceVim#layers#lsp#loadable() abort
+
+  return 1
+
+endfunction
+
 
 function! SpaceVim#layers#lsp#setup() abort
   lua require("spacevim.lsp").setup(
diff --git a/autoload/SpaceVim/layers/shell.vim b/autoload/SpaceVim/layers/shell.vim
index fa267d98c..1def30724 100644
--- a/autoload/SpaceVim/layers/shell.vim
+++ b/autoload/SpaceVim/layers/shell.vim
@@ -304,3 +304,9 @@ function! SpaceVim#layers#shell#health() abort
   call SpaceVim#layers#shell#config()
   return 1
 endfunction
+
+function! SpaceVim#layers#shell#loadable() abort
+
+  return 1
+
+endfunction
diff --git a/autoload/SpaceVim/layers/telescope.vim b/autoload/SpaceVim/layers/telescope.vim
index bbb314765..c0377a60b 100644
--- a/autoload/SpaceVim/layers/telescope.vim
+++ b/autoload/SpaceVim/layers/telescope.vim
@@ -387,3 +387,15 @@ function! SpaceVim#layers#telescope#health() abort
   return 1
 
 endfunction
+
+function! SpaceVim#layers#telescope#set_variable(var) abort
+
+  
+
+endfunction
+
+function! SpaceVim#layers#telescope#get_options() abort
+
+  return []
+
+endfunction
diff --git a/autoload/SpaceVim/layers/tools.vim b/autoload/SpaceVim/layers/tools.vim
index b191e03ca..bf0f3b2aa 100644
--- a/autoload/SpaceVim/layers/tools.vim
+++ b/autoload/SpaceVim/layers/tools.vim
@@ -73,4 +73,10 @@ function! SpaceVim#layers#tools#health() abort
   return 1
 endfunction
 
+function! SpaceVim#layers#tools#loadable() abort
+
+  return 1
+
+endfunction
+
 " vim:set et sw=2 cc=80:
diff --git a/autoload/SpaceVim/layers/tools/mpv.vim b/autoload/SpaceVim/layers/tools/mpv.vim
index 1a3aff012..ef092a7f5 100644
--- a/autoload/SpaceVim/layers/tools/mpv.vim
+++ b/autoload/SpaceVim/layers/tools/mpv.vim
@@ -106,6 +106,24 @@ function! SpaceVim#layers#tools#mpv#health() abort
   return 1
 endfunction
 
+function! SpaceVim#layers#tools#mpv#loadable() abort
+
+  return 1
+
+endfunction
+
+function! SpaceVim#layers#tools#mpv#plugins() abort
+
+  return []
+
+endfunction
+
+function! SpaceVim#layers#tools#mpv#get_options() abort
+
+  return ['musics_directory', 'mpv_interpreter']
+
+endfunction
+
 let s:playId = 0
 fu! s:handler(id, data, event) abort
   if a:event ==# 'exit'
diff --git a/autoload/SpaceVim/layers/ui.vim b/autoload/SpaceVim/layers/ui.vim
index d617765c1..dcc844646 100644
--- a/autoload/SpaceVim/layers/ui.vim
+++ b/autoload/SpaceVim/layers/ui.vim
@@ -721,3 +721,9 @@ function! s:reduce_font() abort
   let &guifont = substitute(&guifont, ':h\d\+', ':h' . font_size, '')
   sleep 100m
 endfunction
+
+function! SpaceVim#layers#ui#loadable() abort
+
+  return 1
+
+endfunction
diff --git a/autoload/SpaceVim/layers/vim.vim b/autoload/SpaceVim/layers/vim.vim
index afc544839..87484bef5 100644
--- a/autoload/SpaceVim/layers/vim.vim
+++ b/autoload/SpaceVim/layers/vim.vim
@@ -26,3 +26,9 @@ function! SpaceVim#layers#vim#health() abort
   call SpaceVim#layers#vim#config()
   return 1
 endfunction
+
+function! SpaceVim#layers#vim#loadable() abort
+
+  return 1
+
+endfunction
diff --git a/autoload/SpaceVim/plugins.vim b/autoload/SpaceVim/plugins.vim
index 8b2bbe958..e351ec29a 100644
--- a/autoload/SpaceVim/plugins.vim
+++ b/autoload/SpaceVim/plugins.vim
@@ -58,6 +58,7 @@ function! s:getLayerPlugins(layer) abort
   try
     let p = SpaceVim#layers#{a:layer}#plugins()
   catch /^Vim\%((\a\+)\)\=:E117/
+    call SpaceVim#logger#info(a:layer . ' layer do not implement plugins function')
   endtry
   return p
 endfunction
@@ -67,6 +68,7 @@ function! s:loadLayerConfig(layer) abort
   try
     call SpaceVim#layers#{a:layer}#config()
   catch /^Vim\%((\a\+)\)\=:E117/
+    call SpaceVim#logger#info(a:layer . ' layer do not implement config function')
   endtry
 
 endfunction