Error: attempt to concatenate a nil value.

[AGou-ops]

Error executing vim.schedule lua callback: /Users/xxx/.config/nvim/lua/plugins/cmp.lua:89: attempt to concatenate a nil value
stack traceback:
        /Users/xxx/.config/nvim/lua/plugins/cmp.lua:89: in function 'format'
        ...ou-ops/.local/share/nvim/lazy/nvim-cmp/lua/cmp/entry.lua:290: in function 'callback'
        .../.local/share/nvim/lazy/nvim-cmp/lua/cmp/utils/cache.lua:38: in function 'get_vim_item'
        ...ou-ops/.local/share/nvim/lazy/nvim-cmp/lua/cmp/entry.lua:397: in function 'callback'
        .../.local/share/nvim/lazy/nvim-cmp/lua/cmp/utils/cache.lua:38: in function 'match'
        ...u-ops/.local/share/nvim/lazy/nvim-cmp/lua/cmp/source.lua:114: in function 'get_entries'
        ...gou-ops/.local/share/nvim/lazy/nvim-cmp/lua/cmp/view.lua:72: in function 'open'
        ...gou-ops/.local/share/nvim/lazy/nvim-cmp/lua/cmp/core.lua:326: in function 'fn'
        .../.local/share/nvim/lazy/nvim-cmp/lua/cmp/utils/async.lua:57: in function <.../.local/share/nvim/lazy/nvim-cmp/lua/cmp/utils/async.lua:55>

my cmp format code:

            format = function(entry, vim_item)
                local lspkind_icons = {
                    Text = '',
                    Method = '',
                    Function = '',
                    Constructor = '',
                    Field = 'ﰠ',
                    Variable = '',
                    Class = 'ﴯ',
                    Interface = '',
                    Module = '',
                    Property = 'ﰠ',
                    Unit = '塞',
                    Value = '',
                    Enum = '',
                    Keyword = '',
                    Snippet = '',
                    Color = '',
                    File = '',
                    Reference = '',
                    Folder = '',
                    EnumMember = '',
                    Constant = '',
                    Struct = 'פּ',
                    Event = '',
                    Operator = '',
                    TypeParameter = ' ',
                    Robot = 'ﮧ',
                    Smiley = 'ﲃ',
                    Note = ' ',
                }
                local meta_type = vim_item.kind
                -- load lspkind icons
-                vim_item.kind = lspkind_icons[vim_item.kind] .. ''
                if entry.source.name == 'cmp_tabnine' then
                    vim_item.kind = lspkind_icons['Robot']
                    -- vim_item.kind_hl_group = "CmpItemKindTabnine"
                end

                if entry.source.name == 'emoji' then
                    vim_item.kind = lspkind_icons['Smiley']
                    vim_item.kind_hl_group = 'CmpItemKindEmoji'
                end

                if entry.source.name == 'look' then
                    vim_item.kind = lspkind_icons['Note']
                    -- vim_item.kind_hl_group = "CmpItemKindEmoji"
                end
                vim_item.menu = ({
                    buffer = '[Buffer]',
                    nvim_lsp = meta_type,
                    path = '[Path]',
                    luasnip = '[LuaSnip]',
                    cmp_tabnine = '[TN]',
                    emoji = '[Emoji]',
                    look = '[Dict]',
                })[entry.source.name]

                return vim_item
            end,

• nvim-cmp version: latest(commit:777450f)
• nvim v0.9.0-dev

[AGou-ops]

I don't know what's wrong. It works fine before.

[VesperQuartz]

You fixed this?