Rest run => Async task failed without call back: The coroutine failed

[uchoa]

Prerequisites

• I am using the latest stable release of Neovim
• I am using the latest version of the plugin
• I can reproduce the bug with minimal config below

Neovim Version

NVIM v0.10.4 Build type: Release LuaJIT 2.1.1736781742

Operating system/version

macOS Sequoia 15.3.1

Actual behavior

When I call :Rest run on any endpoint, I get this error:

Error executing Lua callback: .../uchoa/.local/share/nvim/lazy/nvim-nio/lua/nio/tasks.lua:100: Async task failed without callback: The coroutine failed with this message:
...re/nvim/lazy/rest.nvim/lua/rest-nvim/client/curl/cli.lua:360: attempt to index field 'handle' (a nil value)
stack traceback:
        ...re/nvim/lazy/rest.nvim/lua/rest-nvim/client/curl/cli.lua: in function 'request'
        ...ocal/share/nvim/lazy/rest.nvim/lua/rest-nvim/request.lua:64: in function 'run_request'
        ...ocal/share/nvim/lazy/rest.nvim/lua/rest-nvim/request.lua:120: in function <...ocal/share/nvim/lazy/rest.nvim/lua/rest-nvim/request.lua:109>
stack traceback:
        [C]: in function 'error'
        .../uchoa/.local/share/nvim/lazy/nvim-nio/lua/nio/tasks.lua:100: in function 'close_task'
        .../uchoa/.local/share/nvim/lazy/nvim-nio/lua/nio/tasks.lua:122: in function 'step'
        .../uchoa/.local/share/nvim/lazy/nvim-nio/lua/nio/tasks.lua:150: in function 'run'
        ...ocal/share/nvim/lazy/rest.nvim/lua/rest-nvim/request.lua:109: in function 'run'
        ...cal/share/nvim/lazy/rest.nvim/lua/rest-nvim/commands.lua:124: in function 'impl'
        ...cal/share/nvim/lazy/rest.nvim/lua/rest-nvim/commands.lua:309: in function <...cal/share/nvim/lazy/rest.nvim/lua/rest-nvim/commands.lua:297>

Expected behavior

I expected the request to be executed as declared in the .http file.

Steps to reproduce

Open the .http file, place the cursor on a request and :Rest run.

curl --version:

curl 8.7.1 (x86_64-apple-darwin24.0) libcurl/8.7.1 (SecureTransport) LibreSSL/3.3.6 zlib/1.2.12 nghttp2/1.63.0
Release-Date: 2024-03-27
Protocols: dict file ftp ftps gopher gophers http https imap imaps ipfs ipns ldap ldaps mqtt pop3 pop3s rtsp smb smbs smtp smtps telnet tftp
Features: alt-svc AsynchDNS GSS-API HSTS HTTP2 HTTPS-proxy IPv6 Kerberos Largefile libz MultiSSL NTLM SPNEGO SSL threadsafe UnixSockets

luajit -v
LuaJIT 2.1.1736781742 -- Copyright (C) 2005-2025 Mike Pall. https://luajit.org/

Minimal config for repro (using lazy.nvim)

My rest.lua (lazy.nvim) is this:


return {
	"rest-nvim/rest.nvim",
	dependencies = {
		{
			"nvim-treesitter/nvim-treesitter",
			opts = function(_, opts)
				opts.ensure_installed = opts.ensure_installed or {}
				table.insert(opts.ensure_installed, "http")
			end,
		},
		{
			"vhyrro/luarocks.nvim",
			priority = 1000, -- Very high priority is required, luarocks.nvim should run as the first plugin in your config.
			config = true,
		},
	},
}


In fact I didn't have the luarocks dependency declared. Added it after the plugin started crashing.

Other information

No response

[boltlessengineer]

Seems like you are having installation issues. Here are some steps to check your issue:

• run :checkhealth lazy. See what luarocks section says. you should enable the rockspec support to install this plugin (no need to install luarocks.nvim if you are using lazy.nvim v11 or higher)
• run :checkhealth rest-nvim. rest.nvim can diagnostic itself and check if every dependencies are properly installed.
• follow guide from Installation Troubleshooting Guide #498 if anything seems broken.

Tell me if you still have any problem setting up this plugin!

btw why can't I convert this to discussion... Github is being weird these days.