strange bug detect in my trac ?

[lvtien]

Error display :

Trac detected an internal error: 'psycopg2._psycopg.connection' object has no attribute 'set_client_encoding'

Traceback (most recent call last):

File "C:/server/Apache2/cgi-bin/trac.cgi", line 20, in ?

cgi_frontend.run()

File "C:\server\python243\Lib\site-packages\trac\web\cgi_frontend.py", line 68, in run

gateway.run(dispatch_request)

File "C:\server\python243\Lib\site-packages\trac\web\wsgi.py", line 87, in run

response = application(self.environ, self._start_response)

File "C:\server\python243\Lib\site-packages\trac\web\main.py", line 346, in dispatch_request

env = _open_environment(env_path, run_once=environwsgi.run_once)

File "C:\server\python243\Lib\site-packages\trac\web\main.py", line 50, in _open_environment

return open_environment(env_path)

File "C:\server\python243\Lib\site-packages\trac\env.py", line 434, in open_environment

if env.needs_upgrade():

File "C:\server\python243\Lib\site-packages\trac\env.py", line 312, in needs_upgrade

db = self.get_db_cnx()

File "C:\server\python243\Lib\site-packages\trac\env.py", line 182, in get_db_cnx

return DatabaseManager(self).get_connection()

File "C:\server\python243\Lib\site-packages\trac\db\api.py", line 71, in get_connection

return self._cnx_pool.get_cnx()

File "C:\server\python243\Lib\site-packages\trac\db\pool.py", line 83, in get_cnx

cnx = self._connector.get_connection(self._kwargs)

File "C:\server\python243\Lib\site-packages\trac\db\postgres_backend.py", line 40, in get_connection

return PostgreSQLConnection(path, user, password, host, port, params)

File "C:\server\python243\Lib\site-packages\trac\db\postgres_backend.py", line 111, in init

cnx.set_client_encoding('UNICODE')

AttributeError: 'psycopg2._psycopg.connection' object has no attribute 'set_client_encoding' pq_abort: pgconn = 009A2D50, isolevel = 1, status = 1 pq_abort: no transaction to abort conn_close: PQfinish called connection_dealloc: deleted connection object at 00C568A8, refcnt = 0