Seahub fails to start - cffi issue

Seafile Server
1

After upgrading to server version 9.0.9 my seahub refuses to start with the below error related to cffi. I have installed version 1.15 of cffi as the 1.14.0 refuses to build on ubuntu 22.

LC_ALL is not set in ENV, set to en_US.UTF-8
Starting seahub (fastcgi) at 127.0.0.1:8000 ...
Traceback (most recent call last):
  File "/opt/seafile/seafile-server-9.0.9/seahub/manage.py", line 10, in <module>
    execute_from_command_line(sys.argv)
  File "/opt/seafile/seafile-server-9.0.9/seahub/thirdpart/django/core/management/__init__.py", line 419, in execute_from_command_line
    utility.execute()
  File "/opt/seafile/seafile-server-9.0.9/seahub/thirdpart/django/core/management/__init__.py", line 395, in execute
    django.setup()
  File "/opt/seafile/seafile-server-9.0.9/seahub/thirdpart/django/__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/opt/seafile/seafile-server-9.0.9/seahub/thirdpart/django/apps/registry.py", line 114, in populate
    app_config.import_models()
  File "/opt/seafile/seafile-server-9.0.9/seahub/thirdpart/django/apps/config.py", line 301, in import_models
    self.models_module = import_module(models_module_name)
  File "/usr/lib/python3.10/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1050, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 883, in exec_module
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "/opt/seafile/seafile-server-9.0.9/seahub/thirdpart/registration/models.py", line 13, in <module>
    from seahub.base.accounts import User
  File "/opt/seafile/seafile-server-9.0.9/seahub/seahub/base/accounts.py", line 28, in <module>
    from seahub.share.models import ExtraSharePermission
  File "/opt/seafile/seafile-server-9.0.9/seahub/seahub/share/models.py", line 19, in <module>
    from seahub.utils.hasher import AESPasswordHasher
  File "/opt/seafile/seafile-server-9.0.9/seahub/seahub/utils/hasher.py", line 4, in <module>
    from Crypto.Cipher import AES
  File "/usr/local/lib/python3.10/dist-packages/Crypto/Cipher/__init__.py", line 27, in <module>
    from Crypto.Cipher._mode_ecb import _create_ecb_cipher
  File "/usr/local/lib/python3.10/dist-packages/Crypto/Cipher/_mode_ecb.py", line 29, in <module>
    from Crypto.Util._raw_api import (load_pycryptodome_raw_lib,
  File "/usr/local/lib/python3.10/dist-packages/Crypto/Util/_raw_api.py", line 81, in <module>
    ffi = FFI()
  File "/opt/seafile/seafile-server-9.0.9/seahub/thirdpart/cffi/api.py", line 54, in __init__
    raise Exception("Version mismatch: this is the 'cffi' package version %s, located in %r.  When we import the top-level '_cffi_backend' extension module, we get version %s, located in %r.  The two versions should be equal; check your installation." % (
Exception: Version mismatch: this is the 'cffi' package version 1.14.0, located in '/opt/seafile/seafile-server-9.0.9/seahub/thirdpart/cffi/api.py'.  When we import the top-level '_cffi_backend' extension module, we get version 1.15.1, located in '/usr/local/lib/python3.10/dist-packages/_cffi_backend.cpython-310-x86_64-linux-gnu.so'.  The two versions should be equal; check your installation.
2

Look at this post, it may help you

3

thanks, this did the trick for me

python3 -m pip install --force-reinstall --upgrade --target <SOMEWHERE>/seafile-server-9.0.5/seahub/thirdpart cffi==1.14.6

1 Like
4

This is what I did, but it results in seahub not starting properly an showing an ā€˜Internal Server Errorā€™ when trying to access the web interface.
My system runs Ubuntu 22.04 (upgraded from 18.04) and the seafile version is CE 9.0.10.
I couldnā€™t find anything usefull in the log files. Where should I start investigating?

5

Upgrading to Seafile 10 and upgrading the Python dependencies solved the problem.