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List:       trac
Subject:    [Trac] error occurs sometimes when i refresh pages
From:       thinktwice <memorialday () gmail ! com>
Date:       2008-05-30 10:36:18
Message-ID: 06da201f-c187-440f-b8ed-9d8c3e1397e7 () t12g2000prg ! googlegroups ! com
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i'm using trac0.11rc, and i have installed several plugins "authz-
policy r6904", "tracdiscussion0.6", "tracfullblogplugin0.1", "tracnav
4.0 pre6", "tracwysiwyg 02-r3414"

i don't know whether these error caused by one of these plugins. it's
not stable, these error do occur everytime i refresh the page.


Traceback (most recent call last):
  File "C:\Python25\Lib\site-packages\trac\web\api.py", line 339, in
send_error
    'text/html')
  File "C:\Python25\Lib\site-packages\trac\web\chrome.py", line 684,
in render_template
    data = self.populate_data(req, data)
  File "C:\Python25\Lib\site-packages\trac\web\chrome.py", line 592,
in populate_data
    d['chrome'].update(req.chrome)
  File "C:\Python25\Lib\site-packages\trac\web\api.py", line 168, in
__getattr__
    value = self.callbacks[name](self)
  File "C:\Python25\Lib\site-packages\trac\web\chrome.py", line 460,
in prepare_request
    for category, name, text in contributor.get_navigation_items(req):
  File "build\bdist.win32\egg\tracdiscussion\core.py", line 46, in
get_navigation_items
    if req.perm.has_permission('DISCUSSION_VIEW'):
  File "C:\Python25\Lib\site-packages\trac\perm.py", line 521, in
has_permission
    return self._has_permission(action, resource)
  File "C:\Python25\Lib\site-packages\trac\perm.py", line 535, in
_has_permission
    check_permission(action, perm.username, resource, perm)
  File "C:\Python25\Lib\site-packages\trac\perm.py", line 424, in
check_permission
    perm)
  File "C:\Python25\Lib\site-packages\trac\perm.py", line 282, in
check_permission
    get_user_permissions(username)
  File "C:\Python25\Lib\site-packages\trac\perm.py", line 357, in
get_user_permissions
    for perm in self.store.get_user_permissions(username):
  File "C:\Python25\Lib\site-packages\trac\perm.py", line 175, in
get_user_permissions
    cursor.execute("SELECT username,action FROM permission")
  File "C:\Python25\Lib\site-packages\trac\db\util.py", line 51, in
execute
    return self.cursor.execute(sql)
  File "C:\Python25\Lib\site-packages\trac\db\sqlite_backend.py", line
58, in execute
    args or [])
  File "C:\Python25\Lib\site-packages\trac\db\sqlite_backend.py", line
50, in _rollback_on_error
    return function(self, *args, **kwargs)
ProgrammingError: library routine called out of sequence

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