Attempt to index nil or with number when attempting to get invoke[1]

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1

Hello,

I’m currently trying to get the player count for a different place using MessagingService, however, I’m getting the error “attempt to index nil or with number”. Here’s my code:

Local Script:

local invoke = game.ReplicatedStorage.Functions.GetPlayersOnline:InvokeServer(placeid.Value)

script.Parent.Text = invoke[1].." players online"

Event Script:

functions.GetPlayersOnline.OnServerInvoke = function(player, place_id)
	local success, con = pcall(function()
		MessagingService:SubscribeAsync("JoinEvent", function(message)
			print("PlayerCount: "..message[1])
			print("GameID: "..message[2])
			
			return message[1], message[2]
		end)
	end)
end

Script in different place:

Players.PlayerAdded:Connect(function(player)
	local success, result = pcall(function()
		local message = {#PlayerCount, game.PlaceId}
		MessagingService:PublishAsync("JoinEvent", message)
	end)
	
	if not success then
		print(result)
	end
end)

Any idea how to solve this? If so, please post it below.

Thanks,
p0s_0.

2 Likes
2

functions.GetPlayersOnline.OnServerInvoke = function(player, place_id)
local success, con = pcall(function()
MessagingService:SubscribeAsync(“JoinEvent”, function(message)
print("PlayerCount: "…message[type any number here])
print("GameID: "…message[put function 2])

		return message[type message hhere], message[function]
	end)
end)

end


Script in different place:

Players.PlayerAdded:Connect(function(player)
local success, result = pcall(function()
local message = {#PlayerCount, game.PlaceId}
MessagingService:Publish(fuction(“JoinEvent”, message)
end)

if not success then
	print(result)
end

end)

[/quote]
put in ScriptStorage. and add events to ReplicatedStorage.
1 Like
3

Uhhhhhh, what? I don’t know. Can you format it?

6

I don’t know what you’re trying to say here. Also, please format your code properly.

8

That’s what I do in the local script whenever I’m firing the remote function.

10

I’m typing the game id though?

14

Does that even work? If so, I don’t know how.

15

I’ve told you about 3 times now, I did? Look at the code.

16

What is the line causing the error?

17

The line in the Local Script is:

script.Parent.Text = invoke[1].." players online"
1 Like
18

That is because (invoke) is a number, you are trying to index it like a table. Instead of invoke[1], just do invoke.

Or…

Something that would be better were to get rid of the .Value at the end of that first line, and instead of invoke[1], do invoke.Value.

1 Like
19

Now I’m getting the error:

attempt to concatenate nil with string

Also, the value is needed as the function requires a gameId.

1 Like
20

Ok, problem found.
Roblox thinks this:

is part of this:

Change the Event Script to this:

functions.GetPlayersOnline.OnServerInvoke = function(player, place_id)
    local Return
    local success, con = pcall(function()
	    MessagingService:SubscribeAsync("JoinEvent", function(message)
		    print("PlayerCount: "..message[1])
		    print("GameID: "..message[2])
		    Return = message
	    end)
    end)
    local success,Encode = pcall(function()
    	return HttpService:JSONEncode(Return)
    end)
	if success then
        return Encode
    else warn("Error")        end)
end
1 Like