error in installing selfApp

[saurabh gupte]

we want to install selfApp.

we got the following error:

Site error

This site encountered an error trying to fulfill your request. The errors were:

Error Type
    TransactionFailedError
Error Message
    An operation previously failed, with traceback: File "/usr/lib/zope2.9/lib/python/ZServer/PubCore/ZServerPublisher.py", line 23, in __init__ response=response) File "/usr/lib/zope2.9/lib/python/ZPublisher/Publish.py", line 395, in publish_module environ, debug, request, response) File "/usr/lib/zope2.9/lib/python/ZPublisher/Publish.py", line 196, in publish_module_standard response = publish(request, module_name, after_list, debug=debug) File "/var/lib/zope2.9/instance/plone-site/Products/PlacelessTranslationService/PatchStringIO.py", line 34, in new_publish x = Publish.old_publish(request, module_name, after_list, debug) File "/usr/lib/zope2.9/lib/python/ZPublisher/Publish.py", line 115, in publish request, bind=1) File "/usr/lib/zope2.9/lib/python/ZPublisher/mapply.py", line 88, in mapply if debug is not None: return debug(object,args,context) File "/usr/lib/zope2.9/lib/python/ZPublisher/Publish.py", line 41, in call_object
 result=apply(object,args) # Type s to step into published object. File "/var/lib/zope2.9/instance/plone-site/Products/CMFQuickInstallerTool/QuickInstallerTool.py", line 454, in installProducts reinstall=reinstall) File "/var/lib/zope2.9/instance/plone-site/Products/CMFQuickInstallerTool/QuickInstallerTool.py", line 348, in installProduct transaction.abort(1) #this is very naughty File "/usr/lib/zope2.9/lib/python/transaction/_manager.py", line 107, in abort return self.get().abort(sub, deprecation_wng=False) File "/usr/lib/zope2.9/lib/python/transaction/_transaction.py", line 491, in abort self._subtransaction_savepoint.rollback() File "/usr/lib/zope2.9/lib/python/transaction/_transaction.py", line 690, in rollback transaction._saveCommitishError() # reraises! File "/usr/lib/zope2.9/lib/python/transaction/_transaction.py", line 687, in rollback savepoint.rollback() File "/usr/lib/zope2.9/lib/python/transaction/_transaction.py", line 707, in rollback
 raise TypeError("Savepoints unsupported", self.datamanager) TypeError: ('Savepoints unsupported', at 201755340>)
Request made at
    2008/03/29 16:48:27.818 GMT+0530

kindly suggest a solution
regards



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