Hi Dannon,

Here is the full trace from the log:

===

138.253.25.15 - - [29/Aug/2014:19:16:01 +0100]
"POST /galaxy/workflow/run?id=f597429621d6eb2b HTTP/1.1" 500 -
"http://138.253.25.15/galaxy/workflow/run?id=f597429621d6eb2b";
"Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:31.0) Gecko/20100101
Firefox/31.0"
Error - <type 'exceptions.AttributeError'>: 'WorkflowStep' object has no
attribute 'module'
URL: http://138.253.25.15/galaxy/workflow/run?id=f597429621d6eb2b
File
'/usr/lib/galaxy-server/lib/galaxy/web/framework/middleware/error.py',
line 149 in __call__
  app_iter = self.application(environ, sr_checker)
File
'/usr/lib/galaxy-server/eggs/Paste-1.7.5.1-py2.7.egg/paste/recursive.py', line 
84 in __call__
  return self.application(environ, start_response)
File
'/usr/lib/galaxy-server/lib/galaxy/web/framework/middleware/remoteuser.py', 
line 94 in __call__
  return self.app( environ, start_response )
File
'/usr/lib/galaxy-server/eggs/Paste-1.7.5.1-py2.7.egg/paste/httpexceptions.py', 
line 633 in __call__
  return self.application(environ, start_response)
File '/usr/lib/galaxy-server/lib/galaxy/web/framework/base.py', line 132
in __call__
  return self.handle_request( environ, start_response )
File '/usr/lib/galaxy-server/lib/galaxy/web/framework/base.py', line 190
in handle_request
  body = method( trans, **kwargs )
File
'/usr/lib/galaxy-server/lib/galaxy/webapps/galaxy/controllers/workflow.py', 
line 1410 in run

enable_unique_defaults=trans.app.config.enable_unique_workflow_defaults)
File '/usr/lib/galaxy-server/lib/galaxy/web/framework/__init__.py', line
1194 in fill_template
  return self.fill_template_mako( filename, **kwargs )
File '/usr/lib/galaxy-server/lib/galaxy/web/framework/__init__.py', line
1209 in fill_template_mako
  return template.render( **data )
File
'/usr/lib/galaxy-server/eggs/Mako-0.4.1-py2.7.egg/mako/template.py',
line 296 in render
  return runtime._render(self, self.callable_, args, data)
File '/usr/lib/galaxy-server/eggs/Mako-0.4.1-py2.7.egg/mako/runtime.py',
line 660 in _render
  **_kwargs_for_callable(callable_, data))
File '/usr/lib/galaxy-server/eggs/Mako-0.4.1-py2.7.egg/mako/runtime.py',
line 692 in _render_context
  _exec_template(inherit, lclcontext, args=args, kwargs=kwargs)
File '/usr/lib/galaxy-server/eggs/Mako-0.4.1-py2.7.egg/mako/runtime.py',
line 718 in _exec_template
  callable_(context, *args, **kwargs)
File '/usr/lib/galaxy-server/database/compiled_templates/base.mako.py',
line 66 in render_body
  __M_writer(unicode(next.body()))
File
'/usr/lib/galaxy-server/database/compiled_templates/workflow/run.mako.py', line 
257 in render_body
  for ic in oc.input_step.module.get_data_inputs():
AttributeError: 'WorkflowStep' object has no attribute 'module'

===

Cheers,

TIM

On Thu, 2014-09-18 at 22:12 +0100, Dannon Baker wrote:
> Hi Tim,
> 
> 
> Thanks for this.  If you still have it handy, what was the exact
> attribute error?
> 
> 
> -Dannon
> 
> On Thu, Sep 18, 2014 at 10:28 AM, Tim Booth <tbo...@ceh.ac.uk> wrote:
>         Dear Devs,
>         
>         I recently ran into a problem where attempting to run a
>         workflow
>         resulted in an uninformative error and a traceback in the
>         logs, that I
>         put into Google.  This led me to the message below from 2012.
>         As far as
>         I can see it got no reply at the time and I have hit the same
>         issue.
>         
>         I modified database/compiled_templates/workflow/run.mako.py
>         and this
>         resulted in a much more useful error report appearing in the
>         browser.
>         Obviously this is a generated file, so attached is a patch for
>         templates/webapps/galaxy/workflow/run.mako that I propose you
>         add to
>         Galaxy.  As you'll see it just adds a single "try" block and
>         then
>         ignores the exception, which I would say in this case is not
>         actually a
>         bad thing to do even if it is not the ideal fix.  Should be
>         fairly
>         explanatory from the patch.
>         
>         Cheers,
>         
>         TIM
>         
>         Way way back in Jun 2012, Paul-Michael.Agapow at hpa.org.uk
>         wrote:
>         
>         > Looking for pointers on what might be causing this problem:
>         >
>         > A user had a moderately complicated workflow that when run
>         under certain parameter values results in a traceback that
>         ends:
>         >
>         >    Module workflow_run_mako:232 in render_body
>         >    >> for ic in oc.input_step.module.get_data_inputs():
>         >    AttributeError: 'WorkflowStep' object has no attribute
>         'module'
>         >
>         > After some puzzling, I realized one of the parameters was
>         outside the allowed range (a max on an integer param) and that
>         Galaxy was trying to render "run.mako" flagging up the error
>         but erroring out. Why Galaxy tries to call this non-existent
>         member is unclear to me. Any insight or places I should start
>         exploring?
>         >
>         > Galaxy version: various (started with an 6-month old one,
>         upgraded to latest production to see if it would fix error, it
>         didn't)
>         > Hosting OS:  CentOS 6
>         >
>         > ------
>         > Paul Agapow (paul-michael.agapow at hpa.org.uk)
>         > Bioinformatics, Health Protection Agency (UK)
>         >
>         --
>         Tim Booth <tbo...@ceh.ac.uk>
>         NERC Environmental Bioinformatics Centre
>         
>         Centre for Ecology and Hydrology
>         Maclean Bldg, Benson Lane
>         Crowmarsh Gifford
>         Wallingford, England
>         OX10 8BB
>         
>         http://nebc.nerc.ac.uk
>         +44 1491 69 2705
>         
>         ___________________________________________________________
>         Please keep all replies on the list by using "reply all"
>         in your mail client.  To manage your subscriptions to this
>         and other Galaxy lists, please use the interface at:
>           http://lists.bx.psu.edu/
>         
>         To search Galaxy mailing lists use the unified search at:
>           http://galaxyproject.org/search/mailinglists/
> 
> 

-- 
Tim Booth <tbo...@ceh.ac.uk>
NERC Environmental Bioinformatics Centre 

Centre for Ecology and Hydrology
Maclean Bldg, Benson Lane
Crowmarsh Gifford
Wallingford, England
OX10 8BB 

http://nebc.nerc.ac.uk
+44 1491 69 2705

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