TypeError: ticket_changed() takes exactly 4 arguments (5 given)

[kevin.cartier@…]

My suspicion is plugin conflict, but there's not easy way to uninstall/reinstall the plugins (at least not that I've seen).

How to Reproduce

While doing a POST operation on /ticket/7, Trac issued an internal error.

(please provide additional details here)

Request parameters:

{u'__FORM_TOKEN': u'a80d281f0c24cbae4b2c5cde',
 u'action': u'leave',
 u'comment': u"how 'bout now?",
 u'field_blockedby': u'',
 u'field_blocking': u'',
 u'field_cc': u'',
 u'field_checkbox_isblocked': u'1',
 u'field_checkbox_sensitive': u'1',
 u'field_dependencies': u'',
 u'field_description': u'I was made to be deleted',
 u'field_due_assign': u'DD/MM/YYYY',
 u'field_due_close': u'DD/MM/YYYY',
 u'field_etc_hours': u'0',
 u'field_keywords': u'',
 u'field_milestone': u'Stand Up Production Server and V4',
 u'field_priority': u'Low',
 u'field_reporter': u'kcartier',
 u'field_summary': u'kc Test Ticket',
 u'field_type': u'Task',
 'id': u'7',
 u'replyto': u'',
 u'start_time': u'1440596063413000',
 u'submit': u'Submit changes',
 u'view_time': u'1440596063413000'}

User agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36

System Information

Trac	1.0.8
Babel	0.9.6
Genshi	0.6 (without speedups)
mod_wsgi	3.5 (WSGIProcessGroup WSGIApplicationGroup %{GLOBAL})
pysqlite	2.6.3
Python	2.7.9 (default, Dec 10 2014, 12:24:55) [MSC v.1500 32 bit (Intel)]
setuptools	7.0
SQLite	3.7.6.2
Subversion	1.8.4 (r1534716)
jQuery	1.7.2
jQuery UI	1.8.21
jQuery Timepicker	1.0.1

Enabled Plugins

autoupgrade	0.1
batchmodify	0.8.1-trac0.12dev-r0
componenthierarchy	0.0.1dev-r0
privatereports	0.4dev-r0
sensitivetickets	0.22
ticketcalendarplugin	0.12.0.2
ticketcreatebuttons	0.1
timetracking	1.1
timingandestimationplugin	0.1.5
trac-jsgantt	0.11.post0
tracaccountmanager	0.3.2
tracannouncer	1.0dev-r0
traciniadminpanel	1.0.1
tracmigrateplugin	0.12.0.4
tracprivatetickets	2.1.0dev-r0
tracscreenshots	0.8.dev0

Python Traceback

Traceback (most recent call last):
  File "C:\Bitnami\trac-1.0.8-0\apps\trac\Lib\site-packages\Trac-1.0.8-py2.7.egg\trac\web\main.py", line 551, in _dispatch_request
    dispatcher.dispatch(req)
  File "C:\Bitnami\trac-1.0.8-0\apps\trac\Lib\site-packages\Trac-1.0.8-py2.7.egg\trac\web\main.py", line 244, in dispatch
    resp = chosen_handler.process_request(req)
  File "C:\Bitnami\trac-1.0.8-0\apps\trac\Lib\site-packages\Trac-1.0.8-py2.7.egg\trac\ticket\web_ui.py", line 182, in process_request
    return self._process_ticket_request(req)
  File "C:\Bitnami\trac-1.0.8-0\apps\trac\Lib\site-packages\Trac-1.0.8-py2.7.egg\trac\ticket\web_ui.py", line 619, in _process_ticket_request
    self._do_save(req, ticket, action)
  File "C:\Bitnami\trac-1.0.8-0\apps\trac\Lib\site-packages\Trac-1.0.8-py2.7.egg\trac\ticket\web_ui.py", line 1350, in _do_save
    replyto=req.args.get('replyto'))
  File "C:\Bitnami\trac-1.0.8-0\apps\trac\Lib\site-packages\Trac-1.0.8-py2.7.egg\trac\ticket\model.py", line 369, in save_changes
    listener.ticket_changed(self, comment, author, old_values)
TypeError: ticket_changed() takes exactly 4 arguments (5 given)

[Jun Omae]

PluginIssue (​th:#1054). Your ​th:TimingAndEstimationPlugin is too old.

[Ryan J Ollos]

Unrelated: ​th:BatchModifyPlugin isn't needed in Trac 1.0 and later and will likely conflict with trac.ticket.batch, and you should really upgrade your ​th:AccountManagerPlugin to 0.4.4.