UnicodeDecodeError
UnicodeDecodeError: 'utf8' codec can't decode byte 0xcc in position 9: invalid continuation byte

Traceback (most recent call last)
File "C:\Python27\lib\site-packages\flask\app.py", line 1836, in __call__
return self.wsgi_app(environ, start_response)
File "C:\Python27\lib\site-packages\flask\app.py", line 1820, in wsgi_app
response = self.make_response(self.handle_exception(e))
File "C:\Python27\lib\site-packages\flask\app.py", line 1403, in handle_exception
reraise(exc_type, exc_value, tb)
File "C:\Python27\lib\site-packages\flask\app.py", line 1817, in wsgi_app
response = self.full_dispatch_request()
File "C:\Python27\lib\site-packages\flask\app.py", line 1477, in full_dispatch_request
rv = self.handle_user_exception(e)
File "C:\Python27\lib\site-packages\flask\app.py", line 1381, in handle_user_exception
reraise(exc_type, exc_value, tb)
File "C:\Python27\lib\site-packages\flask\app.py", line 1475, in full_dispatch_request
rv = self.dispatch_request()
File "C:\Python27\lib\site-packages\flask\app.py", line 1461, in dispatch_request
return self.view_functions[rule.endpoint](**req.view_args)
File "C:\Python27\lib\site-packages\flask\helpers.py", line 822, in send_static_file
cache_timeout=cache_timeout)
File "C:\Python27\lib\site-packages\flask\helpers.py", line 612, in send_from_directory
filename = safe_join(directory, filename)
File "C:\Python27\lib\site-packages\flask\helpers.py", line 582, in safe_join
return os.path.join(directory, filename)
File "C:\Python27\lib\ntpath.py", line 108, in join
path += "\\" + b
UnicodeDecodeError: 'utf8' codec can't decode byte 0xcc in position 9: invalid continuation byte
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