Traceback (most recent call last):


 "/disk1/home/server/.conda/envs/py3-mink/lib/python3.7/runpy.py", line 193, in _run_module_as_main

"__main__", mod_spec)


 "/disk1/home/server/.conda/envs/py3-mink/lib/python3.7/runpy.py", line 85, in _run_code

exec(code, run_globals)


 "/disk1/home/server/MinkowskiEngine/examples/reconstruction.py", line 625, in <module>

visualize(net, dataloader, device, config)


 "/disk1/home/server/MinkowskiEngine/examples/reconstruction.py", line 546, in visualize

for data_dict in dataloader:


 "/disk1/home/server/.conda/envs/py3-mink/lib/python3.7/site-packages/torch/utils/data/dataloader.py", line 345, in __next__

data = self._next_data()


 "/disk1/home/server/.conda/envs/py3-mink/lib/python3.7/site-packages/torch/utils/data/dataloader.py", line 856, in _next_data

return self._process_data(data)


 "/disk1/home/server/.conda/envs/py3-mink/lib/python3.7/site-packages/torch/utils/data/dataloader.py", line 881, in _process_data

data.reraise()


 "/disk1/home/server/.conda/envs/py3-mink/lib/python3.7/site-packages/torch/_utils.py", line 394, in reraise

raise self.exc_type(msg)
ValueError: Caught ValueError in DataLoader worker process 0.

Traceback (most recent call last):


 "/home/rakan/.pyenv/versions/raiden/bin/raiden", line 11, in <module>

load_entry_point('raiden', 'console_scripts', 'raiden')()


 "/home/rakan/raiden/raiden/__main__.py", line 11, in main

run(auto_envvar_prefix='RAIDEN')


 "/home/rakan/.pyenv/versions/3.6.5/envs/raiden/lib/python3.6/site-packages/click/core.py", line 722, in __call__

return self.main(*args, **kwargs)


 "/home/rakan/.pyenv/versions/3.6.5/envs/raiden/lib/python3.6/site-packages/click/core.py", line 697, in main

rv = self.invoke(ctx)


 "/home/rakan/.pyenv/versions/3.6.5/envs/raiden/lib/python3.6/site-packages/click/core.py", line 1043, in invoke

return Command.invoke(self, ctx)


 "/home/rakan/.pyenv/versions/3.6.5/envs/raiden/lib/python3.6/site-packages/click/core.py", line 895, in invoke

return ctx.invoke(self.callback, **ctx.params)


 "/home/rakan/.pyenv/versions/3.6.5/envs/raiden/lib/python3.6/site-packages/click/core.py", line 535, in invoke

return callback(*args, **kwargs)


 "/home/rakan/.pyenv/versions/3.6.5/envs/raiden/lib/python3.6/site-packages/click/decorators.py", line 17, in new_func

return f(get_current_context(), *args, **kwargs)


 "/home/rakan/raiden/raiden/ui/cli.py", line 966, in run

app_ = _run_app()


 "/home/rakan/raiden/raiden/ui/cli.py", line 887, in _run_app

app_ = ctx.invoke(app, **kwargs)


 "/home/rakan/.pyenv/versions/3.6.5/envs/raiden/lib/python3.6/site-packages/click/core.py", line 535, in invoke

return callback(*args, **kwargs)


 "/home/rakan/raiden/raiden/ui/cli.py", line 693, in app

discovery=discovery,


 "/home/rakan/raiden/raiden/app.py", line 121, in __init__

discovery=discovery,


 "/home/rakan/raiden/raiden/raiden_service.py", line 216, in __init__

self.start()


 "/home/rakan/raiden/raiden/raiden_service.py", line 283, in start

on_raiden_event(self, event)


 "/home/rakan/raiden/raiden/raiden_event_handler.py", line 333, in on_raiden_event

handle_contract_send_channelclose(raiden, event)


 "/home/rakan/raiden/raiden/raiden_event_handler.py", line 201, in handle_contract_send_channelclose

signature,


 "/home/rakan/raiden/raiden/network/proxies/payment_channel.py", line 119, in close

signature=signature,


 "/home/rakan/raiden/raiden/network/proxies/token_network.py", line 561, in close

signature,


 "/home/rakan/raiden/raiden/network/rpc/smartcontract_proxy.py", line 40, in transact

**kargs,


 "/home/rakan/raiden/raiden/network/rpc/client.py", line 497, in send_transaction

result = self.web3.eth.sendRawTransaction(signed_txn.rawTransaction)


 "/home/rakan/.pyenv/versions/3.6.5/envs/raiden/lib/python3.6/site-packages/web3-4.4.1-py3.6.egg/web3/eth.py", line 274, in sendRawTransaction

[raw_transaction],


 "/home/rakan/.pyenv/versions/3.6.5/envs/raiden/lib/python3.6/site-packages/web3-4.4.1-py3.6.egg/web3/manager.py", line 110, in request_blocking

raise ValueError(response["error"])
ValueError: {'code': -32000, 'message': 'replacement transaction underpriced'}
