"Unknown LUA error" ?!? Switching Camera works fine but log shows error?

[Tathagat Singh]

Hello Seth and the Novashell community!
I was working on a little exercise project involving two characters.

First Character is a human , the Entity is named "Player" (Set in the lua script itself)
Human is controlled by WASD keys. A and D to move, S to open doors and W to jump.

Second Character is a monkey, the Entity is named "Monkey" (SetName thing in the lua script itself)

I added key bindings to switch the Camera, R for the Human, T for the Monkey.

When I press R, the Camera switches to the Human, and a log message shows up.
When L is pressed, the Camera switches to the Monkey, and a similar log message shows up.

There are no bugs or glitches in the system, the only thing that is bothering me is the log message.

The log:

Original screensize detected as 1280.00 X 768.00
Found "Logitech Attack 3", 11 buttons.

Initializing GameLogic...
Clanlib Sound System Initialized
Mounting world path worlds/Boku_to_Sarukun.
Novashell V0.84 and Lua 5.13 RT Edition Initted.
Initting world
Initting intro menu
Loaded map Intro at tick 4074.  6 non-empty chunks, size is 2 by 2.
Resetting!
Clearing all maps
User profile path now D:\Game Files\Novashell/profiles/Player/Boku_to_Sarukun
Loaded map Main at tick 0.  46 non-empty chunks, size is 22 by 1.
Inserting interface..
Initting interface
Setting up overlays..
Loaded map System Palette at tick 0.  5 non-empty chunks, size is 2 by 1.
Found player in Main at X:368.00 Y: -128.00
Switching world focus to ourself?
Initializing the player entity.
Initializing the monkey.
Editor opened up
Setting retail to	false
Editor closed
Brain: Unknown LUA error (Invalid return type maybe?) in Entity 330 (Monkey) : OnCameraSwitch
Brain: Unknown LUA error (Invalid return type maybe?) in Entity 330 (Monkey) : OnCameraSwitch
Brain: Unknown LUA error (Invalid return type maybe?) in Entity 329 (Player) : OnCameraSwitch
Brain: Unknown LUA error (Invalid return type maybe?) in Entity 329 (Player) : OnCameraSwitch
Editor opened up
Setting retail to	false
Editor closed

player.lua , SetDefaults function.

function SetDefaults()

//--entity stuff
	this:SetCategory(C_CATEGORY_ENTITY, false);
	this:SetCategory(C_CATEGORY_PLAYER, true);
	this:SetName("Player");
	this:SetCollisionListenCategory(C_CATEGORY_TILEPIC, true);
	this:SetCollisionListenCategory(C_CATEGORY_ENTITY, true);
	this:GetBrainManager():Add("StandardBase","");
	this:GetBrainManager():SendToBrainBase("control_filtery=0");
	
	GetGameLogic:SetPlayer(this); // <<<<<THIS WAS ADDED
	AssignPlayerToCameraIfNeeded(); //<<<Tried removing this and using it in the switch function

//--[[
//other stuff

//]]--



	ResetKeys()
end

player.lua , SetupInputKeys function,
This line was added

	GetInputManager:AddBinding("r,always", "OnCameraSwitch", this:GetID());

monkey.lua does not have the extra added part in SetDefaults
This line was added to the SetupInputKeys for the monkey script

	GetInputManager:AddBinding("t,always", "OnCameraSwitch", this:GetID());

This is how the OnCameraSwitch looks for both player.lua AND monkey.lua -

--
function OnCameraSwitch()
	
	GetCamera:SetEntityTrackingByID(this:GetID());
	
end
--

EDIT: I fixed it. Mods may close this thread now, sorry for inconvenience.

The function now looks like this-

function OnCameraSwitch()
	
	GetCamera:SetEntityTrackingByID(this:GetID());
	
	return true;
end

Adding a "return true;" seemed to resolve the problem.