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:

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

 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)
line 109 in __call__
  return self.app( environ, start_response )
line 632 in __call__
  return self.application(environ, start_response)
File '/g/funcgen/galaxy/lib/galaxy/web/framework/base.py', line 145 in
  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 )
 line 127 in do
  return getattr(self.registry(), name)(*args, **kwargs)
 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.


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