local
function BIGBlaster()
if activu == true then return end
if bigblastercooldown == true then return end
activu = true
bigblastercooldown = true
punchsfx:Play()
local mousehit = mouse.Hit.p
bigblastevent:FireServer(mousehit)
wait(0.4)
activu = false
wait(25)
local bigblastercooldown = false
end
(mouse is defined further up in the script)
server
game:GetService("ReplicatedStorage").DTWAUBlast.OnServerEvent:Connect(function(player, mousehit)
local chr = player.Character
local rarm = chr["Right Arm"]
local hed = chr["Head"]
local blaster = game.ServerStorage.DTWAUActualBlast
local gblaster = blaster:Clone()
gblaster.Parent = workspace.Effects
gblaster.CFrame = CFrame.new(chr.HumanoidRootPart.Position, mousehit) * CFrame.Angles(math.pi/2, 0, 0)
its meant to be a gun that shows up behind you and aims towards the mouse.
it keeps giving me Invalid argument #2 (Vector3 expected, got nil), what exactly am i missing or doing wrong here?

7 comments
Which line does the error come from?
You should never use wait(n) or wait() it can be really bad for your game's performance.
what is mousehit?
comes from line 11 in server, mousehit is mouse.Hit.p
why do you have 2 vector3's inside of the CFrame? CFrame takes in 3 axis which are x, y and z. which makes it a vector3
So what do i do with mousepos then?
Hi, I believe the problem for you here is: You need to define a 3rd value. Vector3 = (X,Y,Z) Your X was defined as chr.HumanoidRootPart.Position Your Y was defined as mousehit Your Z must be defined. Other than this, I don't know how else to help you.