'getupvalue' (function expected, got nil)

[Bryantdl7]

Lua Error: [ERROR] entities/gmod_wire_expression2/core/glon.lua:223: bad argument #1 to 'getupvalue' (function expected, got nil) 1. getupvalue - [C]:-1 2. fn - entities/gmod_wire_expression2/core/glon.lua:223 3. unknown - addons/ulib/lua/ulib/shared/hook.lua:183

[Divran]

EDIT: Closed because duplicate of #585

This error only happens if you have a bad version of glon installed. Uninstall your glon and it'll be fixed. To find out where your bad glon is located, try running this code in your server's console

lua_run for k,v in pairs( glon ) do print( k .. ": " .. debug.getinfo(v).short_src ) end