Retrieve Unique ID for a new Record

[FishGuy]

I cannot figure out what is going wrong here.
I get the error.
PK_RequestID is not a parameter for procedure sp_InsertRequestID.
Here is my SP

ALTER PROCEDURE sp_InsertRequestID

	(	
	@User varchar(50),
	 @Request varchar(50),
	@PK_RequestID int OUTPUT
	)

AS
	Insert INTO TBL_Requests 
	(LoginID, Request) 
	Values 
	(@User, @Request)
	Select @PK_RequestID=@@Identity
Return

Here is my Code to call it

Dim intReturnID
        Me.SqlConnection1.Open()
        Me.SqlCommand1.Parameters.Item("@Request").Value = Me.TextBox1.Text
        Me.SqlCommand1.Parameters.Item("@User").Value = Session("MyID")
        Me.SqlCommand1.ExecuteNonQuery()
        intReturnID = SqlCommand1.Parameters("@PK_RequestID").Value
        Me.SqlConnection1.Close()

And here is my declarations

Me.SqlCommand1.CommandText = "[sp_InsertRequestID]"
        Me.SqlCommand1.CommandType = System.Data.CommandType.StoredProcedure
        Me.SqlCommand1.Connection = Me.SqlConnection1
        Me.SqlCommand1.Parameters.Add(New System.Data.SqlClient.SqlParameter("PK_RequestID", SqlDbType.Int, ParameterDirection.Output))
        Me.SqlCommand1.Parameters.Add(New System.Data.SqlClient.SqlParameter("@Request", System.Data.SqlDbType.Text, 16, "LoginID"))
        Me.SqlCommand1.Parameters.Add(New System.Data.SqlClient.SqlParameter("@User", System.Data.SqlDbType.VarChar, 50, "UserName"))