dist/lib/galaxy/jobs/runners/__init__.py", line 153, in prepare_job
    job_wrapper.prepare()
  File "/usr/local/galaxy/galaxy-dist/lib/galaxy/jobs/__init__.py", line 712, in prepare
    self.command_line, self.extra_filenames = tool_evaluator.build()
  File "/usr/local/galaxy/galaxy-dist/lib/galaxy/tools/evaluation.py", line 348, in build
    self.__build_command_line( )
  File "/usr/local/galaxy/galaxy-dist/lib/galaxy/tools/evaluation.py", line 364, in __build_command_line
    command_line = fill_template( command, context=param_dict )
  File "/usr/local/galaxy/galaxy-dist/lib/galaxy/util/template.py", line 9, in fill_template
    return str( Template( source=template_text, searchList=[context] ) )
  File "/usr/local/galaxy/galaxy-dist/eggs/Cheetah-2.2.2-py2.7-linux-x86_64-ucs2.egg/Cheetah/Template.py", line 1004, in __str__
    return getattr(self, mainMethName)()
  File "cheetah_DynamicallyCompiledCheetahTemplate_1402663002_65_42228.py", line 94, in respond
  File "/usr/local/galaxy/galaxy-dist/lib/galaxy/tools/wrappers.py", line 203, in __getattr__
    return getattr( self.dataset, key )
  File "/usr/local/galaxy/galaxy-dist/lib/galaxy/model/__init__.py", line 1493, in extra_files_path
    return self.dataset.extra_files_path
  File "/usr/local/galaxy/galaxy-dist/lib/galaxy/model/__init__.py", line 1349, in extra_files_path
    return self.object_store.get_filename( self, dir_only=True, extra_dir=self._extra_files_path or "dataset_%d_files" % 
self.id )
  File "/usr/local/galaxy/galaxy-dist/lib/galaxy/objectstore/__init__.py", line 416, in get_filename
    return self.__call_method('get_filename', obj, ObjectNotFound, True, **kwargs)
  File "/usr/local/galaxy/galaxy-dist/lib/galaxy/objectstore/__init__.py", line 436, in __call_method
    % ( method, str( obj ), str( kwargs ) ) )
ObjectNotFound: objectstore, __call_method failed: get_filename on 
<galaxy.model.Dataset object at 0x7f7ee103fb90>, kwargs: 
{'dir_only': True, 'extra_dir': 'dataset_118453_files'}
It should be reproducible with the latest Galaxy stable release and the latest NCBI Blast+ wrappers if you are trying to generate a Blast+ database.