runtime error

occurred: Traceback (most recent call last): File "app.py", line 30, in <module> sampler_dist = DifIRSampler(configs) File "/home/user/app/sampler.py", line 44, in __init__ self.build_model() File "/home/user/app/sampler.py", line 102, in build_model self.face_helper = FaceRestoreHelper( File "/home/user/app/facelib/utils/face_restoration_helper.py", line 105, in __init__ self.face_det = init_detection_model(det_model, half=False, device=self.device) File "/home/user/app/facelib/detection/__init__.py", line 16, in init_detection_model model = init_retinaface_model(model_name, half, device) File "/home/user/app/facelib/detection/__init__.py", line 35, in init_retinaface_model model_path = load_file_from_url(url=model_url, model_dir='weights/facelib', progress=True, file_name=None) File "/home/user/app/facelib/utils/misc.py", line 97, in load_file_from_url download_url_to_file(url, cached_file, hash_prefix=None, progress=progress) File "/home/user/.pyenv/versions/3.8.9/lib/python3.8/site-packages/torch/hub.py", line 593, in download_url_to_file u = urlopen(req) File "/home/user/.pyenv/versions/3.8.9/lib/python3.8/urllib/request.py", line 222, in urlopen return opener.open(url, data, timeout) File "/home/user/.pyenv/versions/3.8.9/lib/python3.8/urllib/request.py", line 525, in open response = self._open(req, data) File "/home/user/.pyenv/versions/3.8.9/lib/python3.8/urllib/request.py", line 542, in _open result = self._call_chain(self.handle_open, protocol, protocol + File "/home/user/.pyenv/versions/3.8.9/lib/python3.8/urllib/request.py", line 502, in _call_chain result = func(*args) File "/home/user/.pyenv/versions/3.8.9/lib/python3.8/urllib/request.py", line 1397, in https_open return self.do_open(http.client.HTTPSConnection, req, File "/home/user/.pyenv/versions/3.8.9/lib/python3.8/urllib/request.py", line 1357, in do_open raise URLError(err) urllib.error.URLError: <urlopen error [Errno -3] Temporary failure in name resolution>

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