How to rotate model using another model

[Msgme_4issues]

I am trying to rotate Y axis orientation of m model to the same Y axis orientation of f model
error Unable to cast bool to CoordinateFrame

game.Players.PlayerAdded:Connect(function(plr)
	local m = game.Workspace.Modelz
	local f = game.Workspace.Modelb
	local a, u, c = f:GetPivot():ToOrientation()
	local Orientationb	= math.deg(u)
	local W, T, H = m:GetPivot():ToOrientation()
	local OrientationT	= math.deg(T)
	
	m:PivotTo(CFrame.new(m:GetPivot().Position) == Orientationb)
	task.wait()
		print(OrientationT)
		
end)

[TestAccount563344]

@Msgme_4issues

m:PivotTo(CFrame.new(m:GetPivot().Position) == Orientationb)

what are you even trying to do here? is this the line of code that is giving you the error?

[solidracer]

m:PivotTo(m:GetPivot() * CFrame.Angles(0,u,0))

my guess, I didnt understand what u meant

[2112Jay]

Both parts are Locked and Anchored …

local p1 = workspace:WaitForChild("Part_1") -- .PrimaryPart -- for a model
local p2 = workspace:WaitForChild("Part_2") -- .PrimaryPart -- for a model
local rs = game:GetService("RunService") 
local s1 = 0.03699125043077515

while rs.Stepped:Wait() do
	p1.CFrame *= CFrame.fromEulerAnglesXYZ(0, s1, 0)
	p2.Orientation = p1.Orientation -- + Vector3.new(0,90,0) -- for an offset
end

This is super smooth and can do very slow rotations if needed.
For a model the PrimaryPart needs to be set to the part inside.
(click on PrimaryPart in the model’s Properties window then click on the part inside)

[Msgme_4issues]

Sorry for the confusion, but this fixed it Thanks you!!