[wingide-users] Adding a WingDBG instance with Zope 2.6beta fails

I tried to add a new WingDBG instance. This fails with the following
traceback:

Exception traceback
Time 2002/09/27 10:04:41.450 Universal
User admin
Request URL 
http://localhost:20080/manage_addProduct/WingDBG/manage_addInstance
Exception Type KeyError
Exception Value BASEPATH1

Traceback (innermost last):

    * Module ZPublisher.Publish, line 98, in publish
    * Module ZPublisher.mapply, line 88, in mapply
    * Module ZPublisher.Publish, line 39, in call_object
    * Module Products.WingDBG.WingDBG, line 339, in manage_addInstance
    * Module Products.WingDBG.WingDBG, line 1019, in manage_configure_submit
    * Module Products.WingDBG.WingDBG, line 1025, in __display_after_submit
    * Module Products.WingDBG.WingDBG, line 425, in manage_main
    * Module Shared.DC.Scripts.Bindings, line 252, in __call__
    * Module Shared.DC.Scripts.Bindings, line 283, in _bindAndExec
    * Module App.special_dtml, line 174, in _exec
    * Module DocumentTemplate.DT_With, line 76, in render

KeyError: BASEPATH1

Display traceback as text
REQUEST
form
id 'debugger'
log_file '<none>'
ide_port '50005'
ide_host 'localhost'
http_host 'localhost'
http_port '50080'
wing_home '/usr/lib/wingide'
cookies
__issuetracker_display_format 'plaintext'
__issuetracker_fromname 'Andreas Jung'
__issuetracker_email 'andras.jung@haufe.de'
lazy items
SESSION <bound method SessionDataManager.getSessionData of 
<SessionDataManager instance at 8b8f2d0>>
other
AUTHENTICATION_PATH ''
ide_host 'localhost'
ide_port '50005'
log_file '<none>'
wing_home '/usr/lib/wingide'
id 'debugger'
SERVER_URL 'http://localhost:20080'
PUBLISHED <bound method __FactoryDispatcher__.manage_addInstance of 
<__FactoryDispatcher__ instance at 8d1bdc8>>
URL 'http://localhost:20080/manage_addProduct/WingDBG/manage_addInstance'
AUTHENTICATED_USER admin
http_host 'localhost'
TraversalRequestNameStack []
http_port '50080'
URL0 http://localhost:20080/manage_addProduct/WingDBG/manage_addInstance
URL1 http://localhost:20080/manage_addProduct/WingDBG
URL2 http://localhost:20080/manage_addProduct
URL3 http://localhost:20080
BASE0 http://localhost:20080
BASE1 http://localhost:20080
BASE2 http://localhost:20080/manage_addProduct
BASE3 http://localhost:20080/manage_addProduct/WingDBG
BASE4 http://localhost:20080/manage_addProduct/WingDBG/manage_addInstance
environ
SCRIPT_NAME ''
HTTP_ACCEPT_ENCODING 'gzip, deflate, compress;q=0.9'
CONTENT_LENGTH '134'
SERVER_PORT '20080'
PATH_TRANSLATED '/manage_addProduct/WingDBG/manage_addInstance'
HTTP_ACCEPT 
'text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;
q=0.8,video/x-mng,image/png,image/jpeg,image/gif;q=0.2,text/css,*/*;q=0.1'
GATEWAY_INTERFACE 'CGI/1.1'
CONTENT_TYPE 'application/x-www-form-urlencoded'
HTTP_ACCEPT_LANGUAGE 'en-us, en;q=0.50'
REMOTE_ADDR '127.0.0.1'
SERVER_NAME 'sb1.sb.haufe.de'
HTTP_USER_AGENT 'Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.1) 
Gecko/20020827'
HTTP_ACCEPT_CHARSET 'ISO-8859-1, utf-8;q=0.66, *;q=0.66'
CONNECTION_TYPE 'keep-alive'
channel.creation_time 1033121072
SERVER_PROTOCOL 'HTTP/1.1'
HTTP_KEEP_ALIVE '300'
HTTP_HOST 'localhost:20080'
REQUEST_METHOD 'POST'
PATH_INFO '/manage_addProduct/WingDBG/manage_addInstance'
SERVER_SOFTWARE 'Zope/(unreleased version, python 2.1.3, linux2) 
ZServer/1.1b1'
HTTP_COOKIE '__issuetracker_display_format="plaintext"; 
__issuetracker_fromname="Andreas Jung"; 
__issuetracker_email="andras.jung@haufe.de"'
HTTP_REFERER 
'http://localhost:20080/manage_addProduct/WingDBG/manage_addInstanceForm'