Hello everyone

I have an issue when trying to import new datasets or when putting a
dataset into a history. I saw Edward Kirton had the same problem but he
got no answer:
http://lists.bx.psu.edu/pipermail/galaxy-dev/2010-May/002732.html

Here is the error message I get when clicking the "Add datasets" button
in a library, in the admin's "Manage data libraries" panel:


UnmappedInstanceError: Class '__builtin__.NoneType' is not mapped

URL:
http://manni/galaxy/library_common/upload_library_dataset?library_id=f2db41e1fa331b3e&show_deleted=False&cntrller=library_admin&folder_id=f2db41e1fa331b3e&use_panels=False
File
'/g/funcgen/galaxy/eggs/WebError-0.8a-py2.6.egg/weberror/evalexception/middleware.py',
 line 364 in respond
  app_iter = self.application(environ, detect_start_response)
File '/g/funcgen/galaxy/eggs/Paste-1.6-py2.6.egg/paste/debug/prints.py',
line 98 in __call__
  environ, self.app)
File '/g/funcgen/galaxy/eggs/Paste-1.6-py2.6.egg/paste/wsgilib.py', line
539 in intercept_output
  app_iter = application(environ, replacement_start_response)
File '/g/funcgen/galaxy/eggs/Paste-1.6-py2.6.egg/paste/recursive.py',
line 80 in __call__
  return self.application(environ, start_response)
File
'/g/funcgen/galaxy/lib/galaxy/web/framework/middleware/remoteuser.py',
line 109 in __call__
  return self.app( environ, start_response )
File
'/g/funcgen/galaxy/eggs/Paste-1.6-py2.6.egg/paste/httpexceptions.py',
line 632 in __call__
  return self.application(environ, start_response)
File '/g/funcgen/galaxy/lib/galaxy/web/framework/base.py', line 145 in
__call__
  body = method( trans, **kwargs )
File '/g/funcgen/galaxy/lib/galaxy/web/controllers/library_common.py',
line 907 in upload_library_dataset
  trans.sa_session.refresh( history )
File
'/g/funcgen/galaxy/eggs/SQLAlchemy-0.5.6_dev_r6498-py2.6.egg/sqlalchemy/orm/scoping.py',
 line 127 in do
  return getattr(self.registry(), name)(*args, **kwargs)
File
'/g/funcgen/galaxy/eggs/SQLAlchemy-0.5.6_dev_r6498-py2.6.egg/sqlalchemy/orm/session.py',
 line 925 in refresh
  raise exc.UnmappedInstanceError(instance)
UnmappedInstanceError: Class '__builtin__.NoneType' is not mapped


Now when does it occur:

I have two databases. One test database I created a month ago which
works fine, even now. The other one I created recently which is supposed
to be the final database. But the latter keeps triggering the above
message, even when I drop it and create it all over again. I even tried
to create a third one, all clean and new but the problem remains. I
tried to trash all the eggs so Galaxy gets fresh new eggs, with no
effect at all. The error's still there.

If you have any clue, I'll be forever grateful.

Cheers,
L-A

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