mixing output params and input params on stored proc does not seem to work, but when changed to both output, it does work

[westpicoblvd]

If I'm mapping a stored proc with one output param and one input param, exceptions are thrown 👍
SqlException: The formal parameter "@QueueId" was not declared as an OUTPUT parameter, but the actual parameter passed in requested output.

Please advise, it does not matter what order I change the args to stored proc, but when they are both output, it works.

SqlException: The formal parameter "@QueueId" was not declared as an OUTPUT parameter, but the actual parameter passed in requested output.

SQL:

**alter procedure [TM].[TaskInputZombie5]
(
@message nvarchar(400) output,@QueueId int

)
as
begin
declare @iErr int = 10
select @QueueId = @iErr * @iErr

set @message = @message + 'more: ' + CONVERT(nvarchar(40),@QueueId)
return 0
end**
c#:

    public int TaskInputZombie5(
        [Parameter(DbType = "int", ClrType = typeof(int), Name = "QueueId")] ObjectParameter QueueId,
        [Parameter(DbType = "nvarchar", ClrType = typeof(string), Name = "Message")] ObjectParameter Message)
    {
  
        ObjectParameter[] paramsObjectParameter = new ObjectParameter[2];
        paramsObjectParameter[0] = Message;
        paramsObjectParameter[1] = QueueId;
        return this.ObjectContext().ExecuteFunction(nameof(this.TaskInputZombie5),
            paramsObjectParameter);
    }