[Windows]No such file or directory Error

[abbychau]

----------------------------------------
Exception happened during processing of request from ('127.0.0.1', 55254)
Traceback (most recent call last):
  File "C:\Users\abbychau\Anaconda3\lib\socketserver.py", line 313, in _handle_request_noblock
    self.process_request(request, client_address)
  File "C:\Users\abbychau\Anaconda3\lib\socketserver.py", line 341, in process_request
    self.finish_request(request, client_address)
  File "C:\Users\abbychau\Anaconda3\lib\socketserver.py", line 354, in finish_request
    self.RequestHandlerClass(request, client_address, self)
  File "server.py", line 27, in __init__
    self, req, client_addr, server)
  File "C:\Users\abbychau\Anaconda3\lib\socketserver.py", line 681, in __init__
    self.handle()
  File "C:\Users\abbychau\Anaconda3\lib\http\server.py", line 422, in handle
    self.handle_one_request()
  File "C:\Users\abbychau\Anaconda3\lib\http\server.py", line 410, in handle_one_request
    method()
  File "server.py", line 67, in do_POST
    fout2 = open("./images/ref/" + id_str + ".png", 'wb')
FileNotFoundError: [Errno 2] No such file or directory: './images/ref/AJQXAD85YFOELX24L9LHIIPV8GTO1703.png'

[taizan]

sorry, the folder is deleted at once but it is placed again https://github.com/pfnet/PaintsChainer/commit/2e9ca0af3cf5c68b4c768999a12af0504737b53c