On one particular history, I see this.

I am at 
035583d94b11<https://bitbucket.org/galaxy/galaxy-central/changeset/035583d94b11200276aed333a859b8e49b64429f>


I don't know why this happens on this history…
I cloned it, then re-ran one step.

I hope this stacktrace is helpful:

Exception happened during processing of request from ('127.0.0.1', 56949)
Traceback (most recent call last):
  File 
"/mnt/ngswork/galaxy/galaxy-dist/eggs/Paste-1.6-py2.6.egg/paste/httpserver.py", 
line 1053, in process_request_in_thread
    self.finish_request(request, client_address)
  File "/usr/lib/python2.6/SocketServer.py", line 320, in finish_request
    self.RequestHandlerClass(request, client_address, self)
  File "/usr/lib/python2.6/SocketServer.py", line 615, in __init__
    self.handle()
  File 
"/mnt/ngswork/galaxy/galaxy-dist/eggs/Paste-1.6-py2.6.egg/paste/httpserver.py", 
line 432, in handle
    BaseHTTPRequestHandler.handle(self)
  File "/usr/lib/python2.6/BaseHTTPServer.py", line 329, in handle
    self.handle_one_request()
  File 
"/mnt/ngswork/galaxy/galaxy-dist/eggs/Paste-1.6-py2.6.egg/paste/httpserver.py", 
line 427, in handle_one_request
    self.wsgi_execute()
  File 
"/mnt/ngswork/galaxy/galaxy-dist/eggs/Paste-1.6-py2.6.egg/paste/httpserver.py", 
line 287, in wsgi_execute
    self.wsgi_start_response)
  File 
"/mnt/ngswork/galaxy/galaxy-dist/eggs/Paste-1.6-py2.6.egg/paste/urlmap.py", 
line 202, in __call__
    return app(environ, start_response)
  File 
"/mnt/ngswork/galaxy/galaxy-dist/lib/galaxy/web/framework/middleware/xforwardedhost.py",
 line 21, in __call__
    return self.app( environ, start_response )
  File 
"/mnt/ngswork/galaxy/galaxy-dist/eggs/PasteDeploy-1.3.3-py2.6.egg/paste/deploy/config.py",
 line 164, in __call__
    app_iter = self.application(environ, start_response)
  File 
"/mnt/ngswork/galaxy/galaxy-dist/lib/galaxy/web/framework/middleware/translogger.py",
 line 68, in __call__
    return self.application(environ, replacement_start_response)
  File 
"/mnt/ngswork/galaxy/galaxy-dist/eggs/Paste-1.6-py2.6.egg/paste/exceptions/errormiddleware.py",
 line 153, in __call__
    exc_info)
  File 
"/mnt/ngswork/galaxy/galaxy-dist/lib/galaxy/web/framework/middleware/translogger.py",
 line 67, in replacement_start_response
    return start_response( status, headers, exc_info )
  File 
"/mnt/ngswork/galaxy/galaxy-dist/eggs/Paste-1.6-py2.6.egg/paste/exceptions/errormiddleware.py",
 line 143, in __call__
    app_iter = self.application(environ, start_response)
  File 
"/mnt/ngswork/galaxy/galaxy-dist/eggs/Paste-1.6-py2.6.egg/paste/recursive.py", 
line 80, in __call__
    return self.application(environ, start_response)
  File 
"/mnt/ngswork/galaxy/galaxy-dist/lib/galaxy/web/framework/middleware/remoteuser.py",
 line 91, in __call__
    return self.app( environ, start_response )
  File 
"/mnt/ngswork/galaxy/galaxy-dist/eggs/Paste-1.6-py2.6.egg/paste/httpexceptions.py",
 line 632, in __call__
    return self.application(environ, start_response)
  File "/mnt/ngswork/galaxy/galaxy-dist/lib/galaxy/web/framework/base.py", line 
169, in __call__
    return body( environ, start_response )
  File "/mnt/ngswork/galaxy/galaxy-dist/lib/galaxy/web/framework/__init__.py", 
line 858, in render
    template.render_context( context )
  File 
"/mnt/ngswork/galaxy/galaxy-dist/eggs/Mako-0.4.1-py2.6.egg/mako/template.py", 
line 319, in render_context
    **kwargs)
  File 
"/mnt/ngswork/galaxy/galaxy-dist/eggs/Mako-0.4.1-py2.6.egg/mako/runtime.py", 
line 692, in _render_context
    _exec_template(inherit, lclcontext, args=args, kwargs=kwargs)
  File 
"/mnt/ngswork/galaxy/galaxy-dist/eggs/Mako-0.4.1-py2.6.egg/mako/runtime.py", 
line 718, in _exec_template
    callable_(context, *args, **kwargs)
  File 
"/mnt/ngswork/galaxy/galaxy-dist/database/compiled_templates/root/history.mako.py",
 line 306, in render_body
    __M_writer(unicode(render_dataset( data, data.hid, show_deleted_on_refresh 
= show_deleted, for_editing = True )))
  File 
"/mnt/ngswork/galaxy/galaxy-dist/database/compiled_templates/root/history_common.mako.py",
 line 553, in render_render_dataset
    visualizations = data.get_visualizations()
  File "/mnt/ngswork/galaxy/galaxy-dist/lib/galaxy/model/__init__.py", line 
1251, in get_visualizations
    return self.datatype.get_visualizations( self )
  File "/mnt/ngswork/galaxy/galaxy-dist/lib/galaxy/datatypes/tabular.py", line 
312, in get_visualizations
    for col_type in dataset.metadata.column_types:
TypeError: 'NoneType' object is not iterable

brad
--
Brad Langhorst
langho...@neb.com<mailto:langho...@neb.com>





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