Collecting acme==0.12.0


./certbot-auto -c /etc/letsencrypt/configs/ certonly

this is my error message?why?

Collecting acme==0.12.0 (from -r /tmp/tmp.dQEKUM7m8e/letsencrypt-auto-requirements.txt (line 174))
Could not find a version that satisfies the requirement acme==0.12.0 (from -r /tmp/tmp.dQEKUM7m8e/letsencrypt-auto-requirements.txt (line 174)) (from versions: 0.0.0.dev20151006, 0.0.0.dev20151008, 0.0.0.dev20151017, 0.0.0.dev20151020, 0.0.0.dev20151021, 0.0.0.dev20151024, 0.0.0.dev20151030, 0.0.0.dev20151104, 0.0.0.dev20151107, 0.0.0.dev20151108, 0.0.0.dev20151114, 0.0.0.dev20151123, 0.0.0.dev20151201, 0.1.0, 0.1.1, 0.2.0, 0.3.0, 0.4.0, 0.4.1, 0.4.2, 0.5.0, 0.6.0, 0.7.0, 0.8.0, 0.8.1, 0.9.0, 0.9.1, 0.9.2, 0.9.3, 0.10.0, 0.10.1, 0.10.2, 0.11.0, 0.11.1)
No matching distribution found for acme==0.12.0 (from -r /tmp/tmp.dQEKUM7m8e/letsencrypt-auto-requirements.txt (line 174))
You are using pip version 8.0.3, however version 9.0.1 is available.
You should consider upgrading via the ‘pip install --upgrade pip’ command.

Certbot has problem setting up the virtual environment.

We were not be able to guess the right solution from your pip

for possible solutions.
You may also find some support resources at .


I think is because of you set pip mirror , just set back to default mirror

mv ~/.pip/pip.conf ~/.pip/pip.conf.backup

or something else


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