Seahub won't start after upgrade to 12

Seafile Server
1

Hello,

Today I’ve upgraded Seafile from 11 to 12. I’ve done all the required steps on the upgrade notes but seahub won’t start now.

Steps that I’ve done:

  1. Upgraded python libraries
  2. Created the .env file and adjust settings
  3. run the upgrade script

When i started seafile it is starting without error. But seahub gives error below:

./seahub.sh start

Cannot find JWT_PRIVATE_KEY value from environment, try to read .env file.
LC_ALL is not set in ENV, set to en_US.UTF-8
Starting seahub at port 8000 …
Error:Seahub failed to start.
Please try to run “./seahub.sh start” again

Any idea?
Where can i look to identify the problem.

Edit: Seafile Pro Edition

2

I find the error caused the issue. When i look at the seafile-monitor.log there is a line that says “ModuleNotFoundError: No module named ‘pylibmc’”. When i install pylibmc with pip install pylibmc, seahub successfully started.