使用pycharm建立flask工程后无法运行默认的hello world！模板，出现的错误：

图片不太清晰，补发一份文字版；

C:\Users\jowu\virtualEnvironment\Scripts\python.exe C:/Users/jowu/Desktop/PyWeb/PyWeb.py
Traceback (most recent call last):
  File "C:\Users\jowu\AppData\Local\Programs\Python\Python36\lib\site-packages\werkzeug\serving.py", line 65, in <module>
    from SocketServer import ThreadingMixIn, ForkingMixIn
ImportError: No module named 'SocketServer'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:/Users/jowu/Desktop/PyWeb/PyWeb.py", line 12, in <module>
    app.run()
  File "C:\Users\jowu\AppData\Local\Programs\Python\Python36\lib\site-packages\flask\app.py", line 828, in run
    from werkzeug.serving import run_simple
  File "C:\Users\jowu\AppData\Local\Programs\Python\Python36\lib\site-packages\werkzeug\serving.py", line 68, in <module>
    from socketserver import ThreadingMixIn, ForkingMixIn
ImportError: cannot import name 'ForkingMixIn'

Process finished with exit code 1

python版本：3.6

pycharm 默认设置：

出现的问题是：ImportError: No module named 'SocketServer'

google之后发现可能是virtualenv没有配置好，但是尝试在Default setting中删除重新配置也还是出现同样的问题。ps.配置方法是根据pycharm文档来配置的。

以上，第一次提问，不到之处，还望海涵。望不吝赐教。