Grep not working

[debianw]

Config

nnoremap <leader>fg <cmd>Telescope live_grep<cr>

Description

Grep not working

Expected Behavior

Actual Behavior
Nothing shows in the preview screen. A Lua error shows up [telescope] ^I...ig/nvim/plugged/telescope.nvim/lua/telescope/pickers.lua:451: in function <...ig/nvim/plugged/telescope.nvim/lua/telescope/pickers.lua:413>

Details

Reproduce

Example:

1. nvim .
2. :Telescope live_grep
3. type something

NVIM v0.5.0-dev+1064-gb96db38af
Build type: RelWithDebInfo
LuaJIT 2.1.0-beta3
Linux Ubuntu

Configuration

...
nnoremap <leader>ff <cmd>Telescope find_files<cr>
nnoremap <leader>fg <cmd>Telescope live_grep<cr>
nnoremap <leader>fb <cmd>Telescope buffers<cr>
nnoremap <leader>fh <cmd>Telescope help_tags<cr>

 call plug#begin()
   Plug 'neoclide/coc.nvim', {'branch': 'release'}
   Plug 'preservim/nerdtree'
   Plug 'morhetz/gruvbox'
   Plug 'vim-airline/vim-airline'
   Plug 'vim-airline/vim-airline-themes'
   Plug 'nvim-lua/popup.nvim'
   Plug 'nvim-lua/plenary.nvim'
   Plug 'nvim-telescope/telescope.nvim'
   Plug 'dracula/vim'
   Plug 'ryanoasis/vim-devicons'
call plug#end()
...
EOF

[delphinus]

Do you have rg executable? live_grep uses vimgrep_arguments in config. See Telescope Defaults.

[SuperCuber]

Is there a way to live grep without installing external dependencies?

[Conni2461]

@SuperCuber It might be possible to to use grep you just need to end up with a line that we can interpret. Our regex:

telescope.nvim/lua/telescope/make_entry.lua

Line 165 in b3d3d93

local _, _, filename, lnum, col, text = string.find(t.value, [[([^:]+):(%d+):(%d+):(.*)]])

Example:

./lua/telescope/previewers/buffer_previewer.lua:659:25:  return previewers.new_buffer_previewer {

Just change your vimgrep_arguments to the desired grep command with args.

If you have something please let me know we could put something like this in the wiki :)

[robbycostales]

I have the same problem, but only when I switch a different Anaconda environment. On my base environment, the live grep search works fine.

[Conni2461]

@robbycostales Does ripgrep in terminal returns something in that different anaconda env?

[robbycostales]

@robbycostales Does ripgrep in terminal returns something in that different anaconda env?

Yes, the command was not found in my new environment (but worked in my base env), so I used conda install -c conda-forge ripgrep. This got it working, thanks!---but I do wonder: is there a way to not have to install these dependencies for each new environment, i.e. always point to my base installation for them?

@Conni2461

[mherna]

I have rg installed and I'm running into a similar issue live grep returned:

[telescope] ^I...ck/packer/start/telescope.nvim/lua/telescope/pickers.lua:453: in function <...ck/packer/start/telescope.nvim/lua/telescope/pickers.lua:415>

[Conni2461]

Can i get the whole error message. :messages to show it. Thanks :)

[mherna]

@Conni2461 my bad didn't have fzf installed, brew install fzf solved the issue...

Is fzf a requirement? In that case shouldn't the readme.md be updated? Didn't see it in Optional dependences, so I thought it was not required

|| [telescope] [WARN  05:36:37] ...ck/packer/start/telescope.nvim/lua/telescope/pickers.lua:458: Failed with msg:  .../site/pack/packer/start/plenary.nvim/lua/plenary/job.lua:80: fzf: Executable not found
|| [telescope] stack traceback:
|| [telescope] ^I.../site/pack/packer/start/plenary.nvim/lua/plenary/job.lua:80: in function 'new'
|| [telescope] ^I...ck/packer/start/telescope.nvim/lua/telescope/finders.lua:85: in function 'finder'
|| [telescope] ^I...ck/packer/start/telescope.nvim/lua/telescope/pickers.lua:454: in function <...ck/packer/start/telescope.nvim/lua/telescope/pickers.lua:453>
|| [telescope] ^I[C]: in function 'pcall'
|| [telescope] ^I...ck/packer/start/telescope.nvim/lua/telescope/pickers.lua:453: in function <...ck/packer/start/telescope.nvim/lua/telescope/pickers.lua:415>

[Conni2461]

Is fzf a requirement?

Only if you are using fzf-writer

[zupatisc]

Maybe ripgrep should be listed under non-optional dependencies considering that a builtin picker is using it.

[matu3ba]

Maybe ripgrep should be listed under non-optional dependencies considering that a builtin picker is using it.

I would favor generating a vim help page for the plugin and then separating the README. The README is already far too long.
Personally I like how nvim-dap does it.

Disclaimer: I wrote the Troubleshooting article in the wiki.

[tristone13th]

Can it use the vim internal grep such as vimgrep?

[lvela]

For those who need to install ripgrep: https://github.com/BurntSushi/ripgrep#installation

[manojm-dev]

you can also install ripgrep by $sudo apt install ripgrep in ubuntu it just works as charm.

[diegolikescode]

Do you have rg executable? live_grep uses vimgrep_arguments in config. See Telescope Defaults.

It worked for me, thank you!

[PAVAN507-STAR]

Do you have rg executable? live_grep uses vimgrep_arguments in config. See Telescope Defaults.

worked for me. Thanks a bunch man

[adarmaori]

I'm getting the same behavior from the grep window but without the error message. (I have ripgrep installed and working)