runtime error

eate_effnetb2_model model = torchvision.models.efficientnet_b2(weights=weights) File "/home/user/.local/lib/python3.8/site-packages/torchvision/models/_utils.py", line 142, in wrapper return fn(*args, **kwargs) File "/home/user/.local/lib/python3.8/site-packages/torchvision/models/_utils.py", line 228, in inner_wrapper return builder(*args, **kwargs) File "/home/user/.local/lib/python3.8/site-packages/torchvision/models/efficientnet.py", line 813, in efficientnet_b2 return _efficientnet(inverted_residual_setting, 0.3, last_channel, weights, progress, **kwargs) File "/home/user/.local/lib/python3.8/site-packages/torchvision/models/efficientnet.py", line 372, in _efficientnet model.load_state_dict(weights.get_state_dict(progress=progress)) File "/home/user/.local/lib/python3.8/site-packages/torchvision/models/_api.py", line 63, in get_state_dict return load_state_dict_from_url(self.url, progress=progress) File "/home/user/.local/lib/python3.8/site-packages/torch/hub.py", line 727, in load_state_dict_from_url download_url_to_file(url, cached_file, hash_prefix, progress=progress) File "/home/user/.local/lib/python3.8/site-packages/torch/hub.py", line 593, in download_url_to_file u = urlopen(req) File "/usr/local/lib/python3.8/urllib/request.py", line 222, in urlopen return opener.open(url, data, timeout) File "/usr/local/lib/python3.8/urllib/request.py", line 525, in open response = self._open(req, data) File "/usr/local/lib/python3.8/urllib/request.py", line 542, in _open result = self._call_chain(self.handle_open, protocol, protocol + File "/usr/local/lib/python3.8/urllib/request.py", line 502, in _call_chain result = func(*args) File "/usr/local/lib/python3.8/urllib/request.py", line 1397, in https_open return self.do_open(http.client.HTTPSConnection, req, File "/usr/local/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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