NLua.Exceptions.LuaScriptException: [string "main"]:856: attempt to index local 'file' (a nil value)

[XGDegi]

I've been getting this error forever now i have no idea whats the issue, The only thing i have editing is the config to
--_M.BizhawkDir = "C:/Users/mmill/Downloads/BizHawk-2.2/"
_M.BizhawkDir = "K:/BizHawk-2.9.1-win-x64"

and i have no idea what i need to do to fix it.
the error is
NLua.Exceptions.LuaScriptException: [string "main"]:856: attempt to index local 'file' (a nil value)

[JobbeDeluxe]

i had the same....
the line in main is
"....
file:write(pool.generation .. "\n")
...."

the folder pool is writeable, i do not why this will come up.

[kylechallis]

I've been getting this error forever now i have no idea whats the issue, The only thing i have editing is the config to --_M.BizhawkDir = "C:/Users/mmill/Downloads/BizHawk-2.2/" _M.BizhawkDir = "K:/BizHawk-2.9.1-win-x64"

and i have no idea what i need to do to fix it. the error is NLua.Exceptions.LuaScriptException: [string "main"]:856: attempt to index local 'file' (a nil value)

are you using BizHawk 2.2 or 2.2.2?

also what version of the PreReqs are you using?

[XGDegi]

Bizhawk version 2.2.2 and PreReqs version 2.1