I can't import workflows from file on a freshly installed instance of
Galaxy on Amazon Cloud. The error message is copied below. Do you have some
idea on how to fix this?



Internal Server Error
> Galaxy was unable to sucessfully complete your request
> URL:
> http://ec2-50-19-79-199.compute-1.amazonaws.com/workflow/import_workflow
> Module galaxy.web.framework.middleware.error:149 in __call__
> >>  app_iter = self.application(environ, sr_checker)
> Module paste.recursive:84 in __call__
> >>  return self.application(environ, start_response)
> Module paste.httpexceptions:633 in __call__
> >>  return self.application(environ, start_response)
> Module galaxy.web.framework.base:132 in __call__
> >>  return self.handle_request( environ, start_response )
> Module galaxy.web.framework.base:190 in handle_request
> >>  body = method( trans, **kwargs )
> Module galaxy.webapps.galaxy.controllers.workflow:1127 in import_workflow
> >>  workflow, missing_tool_tups = self._workflow_from_dict( trans, data,
> source=src,add_to_menu=add_to_menu )
> Module galaxy.webapps.galaxy.controllers.workflow:1823 in
> _workflow_from_dict
> >>  module = module_factory.from_dict( trans, step_dict, secure=False )
> Module galaxy.workflow.modules:428 in from_dict
> >>  return self.module_types[type].from_dict( trans, d, **kwargs )
> Module galaxy.workflow.modules:222 in from_dict
> >>  module.state.decode( d[ "tool_state" ], module.tool, module.trans.app,
> secure=secure )
> Module galaxy.tools:849 in decode
> >>  self.inputs = params_from_strings( tool.inputs, values, app,
> ignore_errors=True )
> Module galaxy.tools.parameters:92 in params_from_strings
> >>  value = json_fix( from_json_string( value ) )
> Module simplejson:384 in loads
> Module simplejson.decoder:402 in decode
> TypeError: expected string or buffer
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