How to fix The thread xxx has exited with code 259 (0x103)?

When try to wait for a thread to be alive, but not call thread Start method, will get a lot of errors like this::The thread xxx has exited with code 259 (0x103)

            workerThread = new Thread(StartMethod);
//            workerThread.Start();
            while (!workerThread.IsAlive) ;

:)