Trying to fire output on an entity, but failing hard

[HiddenMyst]

Lua noob training my way up (as of tonight) and I've hit a wall while making an entity for my map.

[lua]
AddCSLuaFile( "cl_init.lua" )
AddCSLuaFile( "shared.lua" )
include( 'shared.lua' )

function ENT:Initialize()
floorCurrent = 0
floorTo = 0
elevator = ents.FindByName(elevatorName)
end

function ENT:KeyValue(key, value)
if key == "doorprefix" then
doorPrefix = value
return
end

if key == "elevatorname" then
elevatorName = value
return
end
end

function ENT:AcceptInput( name, activator, caller, data )
if (name == "goto") then
local floorCurrentDoor = ents.FindByName(doorPrefix..floorCurrent)
elevator:Fire("setposition", data, 0)
end
end

function ENT:OnRemove()
end[/lua]

[lua\entities\elevator_controller\init.lua:27] attempt to call method 'Fire' (a nil value)
]

What have I done wrong, where should I improve and what code criticism can you offer.

[Chewgum]

you can try this

[lua]
AddCSLuaFile( "cl_init.lua" )
AddCSLuaFile( "shared.lua" )
include( 'shared.lua' )

function ENT:Initialize()
self.floorCurrent = 0
self.floorTo = 0
end

function ENT:KeyValue(key, value)
if key == "doorprefix" then
self.doorPrefix = value
end

if key == "elevatorname" then
self.elevator = ents.FindByName(value)
end
end

function ENT:AcceptInput( name, activator, caller, data )
if (name == "goto") then
local floorCurrentDoor = ents.FindByName(self.doorPrefix .. self.floorCurrent)

self.elevator:Fire("setposition", data, 0)
end
end

function ENT:OnRemove()
end
[/lua]

[HiddenMyst]

[lua]
AddCSLuaFile( "cl_init.lua" )
AddCSLuaFile( "shared.lua" )
include( 'shared.lua' )

function ENT:Initialize()
self.floorCurrent = 0
self.floorTo = 0
end

function getKeyValue(ent, key)
return ent:GetKeyValues().key
end

function travelDelay(floorCurrent, floorTo)
return ((floorTo-floorCurrent)*getKeyValue(elevator, "movedistance"))/getKeyValue(elevator, "speed")
end

//KeyValues
function ENT:KeyValue(key, value)
if key == "doorprefix" then
self.doorPrefix = value
end

if key == "elevatorname" then
self.elevator = ents.FindByName(value)
end

if key == "movedelay" then
self.moveDelay = value
end
end

//Input
function ENT:AcceptInput( name, activator, caller, data )
if (name == "goto") then
self.floorTo = data
if (self.floorCurrent!=self.floorTo) then
print(self.doorPrefix)
local floorCurrentDoor = ents.FindByName(self.doorPrefix .. self.floorCurrent)
floorCurrentDoor:Fire("SetAnimation", "close", 0)
self.elevator:Fire("SetPosition", floorTo, moveDelay)
end
end

if (name == "updatefloor") then
self.floorCurrent = self.floorTo
end
end

function ENT:OnRemove()
end[/lua]
For some reason now my door prefix value is returning nil, so I am stuck again.