Solargraph: .vim/bundle/lsp_signature.nvim/lua/lsp_signature.lua:168: attempt to get length of field 'parameters' (a nil value)

[renatolond]

Build info:

NVIM v0.5.0
Build type: Release
LuaJIT 2.0.5

I have lspconfig setup with https://github.com/hrsh7th/nvim-compe and solargraph
With a ruby script like so:

# frozen_string_literal: true

puts()

Trying to see the signature for puts returns

Error executing vim.schedule lua callback: ...ond/.vim/bundle/lsp_signature.nvim/lua/lsp_signature.lua:168: attempt to get length of field 'parameters' (a nil value)

I tried positioning the cursor after the ( and then doing lua require'lsp_signature'.signature(), and it gives me the same error.

[mortezadadgar]

facing exact same issue with solargraph configured as lsp

[ray-x]

Has some fix for this.
But FYI, solargraph does support active parameter. The LSP does not event provide parameter... So the plugin can only show signature without highlight.