The following mod https://mods.factorio.com/mod/lignumis adds new bots and causes the following crash upon startup
Failed to load mods: ...numis__/prototypes/content/basic-construction-robots.lua:13: attempt to index field 'idle' (a nil value)
stack traceback:
...numis__/prototypes/content/basic-construction-robots.lua:13: in function 'robot'
...numis__/prototypes/content/basic-construction-robots.lua:220: in main chunk
[C]: in function 'require'
lignumis/prototypes/content/data.lua:21: in main chunk
[C]: in function 'require'
lignumis/data.lua:30: in main chunk
Given the nature of this mod it is expected, would hope the fix wont be too difficult but if not possible that is fine too, mainly posting this up so that if others come across this issue they can save a few minutes of troubleshooting.
Will be posting this on the other mod authors page as well.