bug: avante always fails with E5108: Error executing lua:, because system_prompt template render fails, missing question field

[jmoudrik]

Describe the bug

Just ,ae or ,aa anything, nvim reports not very verbose exception E5108: Error executing lua:, nothing happens.

The exception happens here:

---@param mode LlmMode
---@param opts TemplateOptions
Prompt.render_mode = function(mode, opts) return templates.render(Prompt.get_file(mode), opts) end

Root cause is that the render dies with deserialize error: missing field 'question'.

This I found by adding some vim.notify & inspect debug prints:

---@param mode LlmMode
---@param opts TemplateOptions
Prompt.render_mode = function(mode, opts)
  local f = Prompt.get_file(mode)
  local status, ret = pcall(templates.render, f, opts)
  if not status then
    vim.notify("f " .. vim.inspect(f), "info")
    vim.notify("opts " .. vim.inspect(opts), "info")
    print("Something went wrong:", ret)
  else
  end
  return ret
end

Which prints:

f "planning.avanterules"
                                                                                                                                                                                                                                                                                                 
opts {                                                                                                                                                                                           
  ask = true,                                                                                                                                                                                   
  code_lang = "typescript",                                                                                                                                                                     
  file_content = "... some of my ugly ts, omiting for brewity ...",                                                                                                                                                                                           
  filepath = "index.ts",                                                                                                                                                                        
  project_context = "null",                                                                                                                                                                     
  use_xml_format = true                                                                                                                                                                         
}                 

Something went wrong: deserialize error: missing field `question`                                                                                                                               
stack traceback:                                                                                                                                                                                
^I[C]: in ?                                                                                                                                                                                     
^I[C]: in function 'pcall'                                                                                                                                                                      
^I...m/.local/share/nvim/lazy/avante.nvim/lua/avante/path.lua:150: in function 'render_mode'      

vanilla install with lazy, main branch current HEAD (934602b), but has been happenning for some time. make BUILD_FROM_SOURCE=true did not help.

To reproduce

No response

Expected behavior

avante works and does not die on exception.

Installation method

{
          "yetone/avante.nvim",
		event = "VeryLazy",
		lazy = false,
		version = false, -- set this if you want to always pull the latest change
		opts = {
			-- add any opts here
		},
		-- if you want to build from source then do `make BUILD_FROM_SOURCE=true`
		build = "make",
		dependencies = {
			"nvim-treesitter/nvim-treesitter",
			"stevearc/dressing.nvim",
			"nvim-lua/plenary.nvim",
			"MunifTanjim/nui.nvim",
		},
}

Environment

nvim 0.10.2, clean lazy config. "Ubuntu 24.04 LTS

Repro

No response

[yetone]

Indicates that your avante related DLL is not the latest version and needs to be updated to the latest version:

#882 (comment)

[jmoudrik]

@yetone thanks for the hint, but I doubt that is the case, as neither of these works

• vanilla lazy install
• build from source
• manual download && unpack of the 0.0.9 artifacts (luajit, but lua 51 also did not work)

(Also cleaning up avante cache did not help.)

Any pointers as to how can I inspect manually what is the problem?
Thx for help.

[jmoudrik]

Ok, fixed. For the reference; issue was that I had some leftover avante dlls in /usr/lib/lua/5.1, from previous development and forgotten about them.. Now I manually inspected the c path of :lua print(package.cpath). Omg.