Missing variable causing autocommand errors

[akinsho]

Whilst swapping branches and dealing with a merge conflict I tried to open lua tree and got the following errors. I've seen these before but not sure exactly what causes them, sorry. Just noting here for now will update later once I'm not at work with a clearer way to reproduce if I find it.

E5108: Error executing lua ...al/share/nvim/plugged/nvim-tree.lua/lua/lib/renderer.lua:81: bad argument #1 to 'ipairs' (table expected, got nil)                                                                                                   
E5108: Error executing lua ...al/share/nvim/plugged/nvim-tree.lua/lua/lib/renderer.lua:81: bad argument #1 to 'ipairs' (table expected, got nil)                                                                                                   
Error detected while processing BufEnter Autocommands for "*":                                                                                                                                                                                     
E5108: Error executing lua .../.local/share/nvim/plugged/nvim-tree.lua/lua/lib/lib.lua:172: Cursor position outside buffer                                                                                                                         
E5108: Error executing lua .../.local/share/nvim/plugged/nvim-tree.lua/lua/lib/lib.lua:172: Cursor position outside buffer                                                                                                                         
E5108: Error executing lua .../.local/share/nvim/plugged/nvim-tree.lua/lua/lib/lib.lua:172: Cursor position outside buffer                                                                                                                         
E5108: Error executing lua ...al/share/nvim/plugged/nvim-tree.lua/lua/lib/renderer.lua:81: bad argument #1 to 'ipairs' (table expected, got nil)                                                                                                   
E5108: Error executing lua ...al/share/nvim/plugged/nvim-tree.lua/lua/lib/renderer.lua:81: bad argument #1 to 'ipairs' (table expected, got nil) 

[kyazdani42]

i've never encountered these, and i did not manage to reproduce :/
I wont be available for a month after tomorrow so take your time :)

[akinsho]

@kyazdani42 I think I've narrowed this down to switching files in different projects which is something I do often. Essentially if the frontend is in ~/projects/frontend and the backend is in ~/projects/backend and you move between files in each project lua tree throws errors

[kyazdani42]

i'll push a fix when i have some time :)