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Title
l

Luan Carvalho

04/17/2020, 1:49 AM
Hi guys im trying to install prefect, but all times this error appears. Whats the most easy way to install prefect ? Thanks
/home/luan/anaconda3/lib/python3.7/site-packages/prefect/cli/server.py:236: YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, as the default Loader is unsafe. Please read <https://msg.pyyaml.org/load> for full details.
y = yaml.load(file)
`ERROR: Couldn't connect to Docker daemon - you might need to run
docker-machine start default
.`
Exception caught; killing services (press ctrl-C to force)
`ERROR: Couldn't connect to Docker daemon - you might need to run
docker-machine start default
.`
Traceback (most recent call last):
File "/home/luan/anaconda3/lib/python3.7/site-packages/prefect/cli/server.py", line 291, in start
["docker-compose", "pull"], cwd=compose_dir_path, env=env
File "/home/luan/anaconda3/lib/python3.7/subprocess.py", line 347, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['docker-compose', 'pull']' returned non-zero exit status 1.
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/luan/anaconda3/bin/prefect", line 10, in <module>
sys.exit(cli())
File "/home/luan/anaconda3/lib/python3.7/site-packages/click/core.py", line 764, in __call__
return self.main(*args, **kwargs)
File "/home/luan/anaconda3/lib/python3.7/site-packages/click/core.py", line 717, in main
rv = self.invoke(ctx)
File "/home/luan/anaconda3/lib/python3.7/site-packages/click/core.py", line 1137, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "/home/luan/anaconda3/lib/python3.7/site-packages/click/core.py", line 1137, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "/home/luan/anaconda3/lib/python3.7/site-packages/click/core.py", line 956, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "/home/luan/anaconda3/lib/python3.7/site-packages/click/core.py", line 555, in invoke
return callback(*args, **kwargs)
File "/home/luan/anaconda3/lib/python3.7/site-packages/prefect/cli/server.py", line 307, in start
["docker-compose", "down"], cwd=compose_dir_path, env=env
File "/home/luan/anaconda3/lib/python3.7/subprocess.py", line 395, in check_output
**kwargs).stdout
File "/home/luan/anaconda3/lib/python3.7/subprocess.py", line 487, in run
output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['docker-compose', 'down']' returned non-zero exit status 1.
n

nicholas

04/17/2020, 1:51 AM
Hi @Luan Carvalho - it appears you can't connect to the Docker daemon, do you have Docker running and does your user have access to it?
l

Luan Carvalho

04/17/2020, 1:53 AM
@nicholas Yes, my docker its running I dont know why he cannot access
n

nicholas

04/17/2020, 1:54 AM
Ah ok! Which OS are you on?
l

Luan Carvalho

04/17/2020, 1:54 AM
Ubuntu
n

nicholas

04/17/2020, 1:55 AM
Got it - have you created the
docker
group and added your user to it? If not you'll need to run:
sudo groupadd docker
then
sudo usermod -aG docker $(whoami)
and then log out/log back in and run
sudo service docker restart