flask应用在windows上启动，套接字错误 【ThreadedWSGIServer】==＞【OSError: [WinError 10038] 在一个非套接字上尝试了一个操作】

报错信息

C:\jesse\web\myFlaskProject> python .\hello.py
 * Serving Flask app 'hello'
 * Debug mode: on
WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.
 * Running on http://127.0.0.1:5000
Press CTRL+C to quit
 * Restarting with stat
 * Debugger is active!
 * Debugger PIN: 817-634