from flask import Flask,render_template
app = Flask(__name__)

@app.route('/')
def home():
   return render_template ('index.html')

if __name__ == '__main__':
   app.run('0.0.0.0',port=5000,debug=True)

4주차 보고잇는데 에러 떠서 로컬호스트5000에서 template not found 가 뜨네요

버튼 만드는 것 까지는 잘 나왔는데.. 껐다켜도 안되구요

아래는 실행 누르고 새로고침 했을 때 나오는 코드입니다.

C:\Users\user\Desktop\sparta\projects\prac\venv\Scripts\python.exe C:/Users/user/Desktop/sparta/projects/prac/app.py 
 * Serving Flask app 'app'
 * 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 all addresses (0.0.0.0)
 * Running on http://127.0.0.1:5000
 * Running on http://172.30.1.58:5000
Press CTRL+C to quit
 * Restarting with stat
 * Debugger is active!
 * Debugger PIN: 143-615-451
127.0.0.1 - - [12/Sep/2022 16:50:56] "GET / HTTP/1.1" 500 -
Traceback (most recent call last):
  File "C:\Users\user\Desktop\sparta\projects\prac\venv\lib\site-packages\flask\app.py", line 2548, in __call__
    return self.wsgi_app(environ, start_response)
  File "C:\Users\user\Desktop\sparta\projects\prac\venv\lib\site-packages\flask\app.py", line 2528, in wsgi_app
    response = self.handle_exception(e)
  File "C:\Users\user\Desktop\sparta\projects\prac\venv\lib\site-packages\flask\app.py", line 2525, in wsgi_app
    response = self.full_dispatch_request()
  File "C:\Users\user\Desktop\sparta\projects\prac\venv\lib\site-packages\flask\app.py", line 1822, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "C:\Users\user\Desktop\sparta\projects\prac\venv\lib\site-packages\flask\app.py", line 1820, in full_dispatch_request
    rv = self.dispatch_request()
  File "C:\Users\user\Desktop\sparta\projects\prac\venv\lib\site-packages\flask\app.py", line 1796, in dispatch_request
    return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)
  File "C:\Users\user\Desktop\sparta\projects\prac\app.py", line 6, in home
    return render_template ('index.html')
  File "C:\Users\user\Desktop\sparta\projects\prac\venv\lib\site-packages\flask\templating.py", line 146, in render_template
    template = app.jinja_env.get_or_select_template(template_name_or_list)
  File "C:\Users\user\Desktop\sparta\projects\prac\venv\lib\site-packages\jinja2\environment.py", line 1081, in get_or_select_template
    return self.get_template(template_name_or_list, parent, globals)
  File "C:\Users\user\Desktop\sparta\projects\prac\venv\lib\site-packages\jinja2\environment.py", line 1010, in get_template
    return self._load_template(name, globals)
  File "C:\Users\user\Desktop\sparta\projects\prac\venv\lib\site-packages\jinja2\environment.py", line 969, in _load_template
    template = self.loader.load(self, name, self.make_globals(globals))
  File "C:\Users\user\Desktop\sparta\projects\prac\venv\lib\site-packages\jinja2\loaders.py", line 126, in load
    source, filename, uptodate = self.get_source(environment, name)
  File "C:\Users\user\Desktop\sparta\projects\prac\venv\lib\site-packages\flask\templating.py", line 62, in get_source
    return self._get_source_fast(environment, template)
  File "C:\Users\user\Desktop\sparta\projects\prac\venv\lib\site-packages\flask\templating.py", line 98, in _get_source_fast
    raise TemplateNotFound(template)
jinja2.exceptions.TemplateNotFound: index.html
127.0.0.1 - - [12/Sep/2022 16:50:56] "GET /?__debugger__=yes&cmd=resource&f=style.css HTTP/1.1" 304 -
127.0.0.1 - - [12/Sep/2022 16:50:57] "GET /?__debugger__=yes&cmd=resource&f=debugger.js HTTP/1.1" 304 -
127.0.0.1 - - [12/Sep/2022 16:50:57] "GET /?__debugger__=yes&cmd=resource&f=console.png HTTP/1.1" 304 -
127.0.0.1 - - [12/Sep/2022 16:50:57] "GET /?__debugger__=yes&cmd=resource&f=console.png HTTP/1.1" 304