User defined mappings in help view

[SegmentationViolator]

Does the help view not show user defined mappings or am I doing something wrong?

            vim.g.loaded_netrw = 1
            vim.g.loaded_netrwPlugin = 1

            local api = require("nvim-tree.api")

            require("nvim-tree").setup({
                on_attach = function ()
                    local function opts(desc)
                        return { desc = "nvim-tree: " .. desc, buffer = bufnr, noremap = true, silent = true, nowait = true }
                    end

                    vim.keymap.set('n', '.',              api.node.run.cmd,               opts("Run Command"))
                    vim.keymap.set('n', 'o',              api.tree.change_root_to_node,   opts("Change Directory"))
                    vim.keymap.set('n', 'i',              api.node.show_info_popup,       opts("Show Information"))
                    vim.keymap.set('n', "<BS>",           api.node.navigate.parent_close, opts("Close Directory"))
                    vim.keymap.set('n', "<CR>",           api.node.open.edit,             opts("Open"))
                    vim.keymap.set('n', 'n',              api.fs.create,                  opts("Create"))
                    vim.keymap.set('n', 'c',              api.fs.copy.node,               opts("Copy"))
                    vim.keymap.set('n', 'd',              api.fs.remove,                  opts("Delete"))
                    vim.keymap.set('n', 'f',              api.live_filter.start,          opts("Filter"))
                    vim.keymap.set('n', '?',              api.tree.toggle_help,           opts("Help"))
                    vim.keymap.set('n', 'H',              api.tree.toggle_hidden_filter,  opts("Toggle Dotfiles"))
                    vim.keymap.set('n', 'p',              api.fs.paste,                   opts("Paste"))
                    vim.keymap.set('n', 'q',              api.tree.close,                 opts("Close"))
                    vim.keymap.set('n', 'r',              api.fs.rename,                  opts("Rename"))
                    vim.keymap.set('n', 'R',              api.tree.reload,                opts("Refresh"))
                    vim.keymap.set('n', 'W',              api.tree.collapse_all,          opts("Collapse All"))
                    vim.keymap.set('n', 'x',              api.fs.cut,                     opts("Cut"))
                    vim.keymap.set('n', "<2-LeftMouse>",  api.node.open.edit,             opts("Open"))
                    vim.keymap.set('n', "<2-RightMouse>", api.tree.change_root_to_node,   opts("Change Directory"))
                end
            })

[alex-courtis]

on_attach = function ()

You're missing the bufnr parameter.

See :help nvim-tree-mappings for the "template" to follow.