Hi galaxy-devs, I get an "Internal Server Error" when trying to "Export History to File". I get the following in my paster.log file:

....

Error - <type 'exceptions.AttributeError'>: 'NoneType' object has no

attribute 'execute' File '/opt/galaxy/lib/galaxy/web/framework/middleware/error.py', line 151 in __call__ app_iter = self.application(environ, sr_checker) File '/opt/galaxy/.venv/lib/python2.7/site-packages/paste/recursive.py', line 85 in __call__ return self.application(environ, start_response) File '/opt/galaxy/.venv/lib/python2.7/site-packages/paste/httpexceptions.py', line 640 in __call__ return self.application(environ, start_response) File '/opt/galaxy/lib/galaxy/web/framework/base.py', line 135 in __call__ return self.handle_request( environ, start_response ) File '/opt/galaxy/lib/galaxy/web/framework/base.py', line 194 in handle_request body = method( trans, **kwargs ) File '/opt/galaxy/lib/galaxy/webapps/galaxy/controllers/history.py', line 1260 in export_archive self.queue_history_export( trans, history, gzip=gzip, include_hidden=include_hidden, include_deleted=include_deleted ) File '/opt/galaxy/lib/galaxy/web/base/controller.py', line 393 in queue_history_export history_exp_tool.execute( trans, incoming=params, history=history, set_output_hid=True ) AttributeError: 'NoneType' object has no attribute 'execute'

CGI Variables ------------- CONTENT_LENGTH: '0' HTTP_ACCEPT: 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8' HTTP_ACCEPT_ENCODING: 'gzip, deflate, sdch' HTTP_ACCEPT_LANGUAGE: 'en-US,en;q=0.8,fr;q=0.6' HTTP_CONNECTION: 'keep-alive' HTTP_COOKIE: 'galaxysession=c6ca0ddb55be603a84da157bd892a9e699b161141ab9ce96d24ae4db9c34333de097bd8cf0510125; SAPPORTALSDB0=urn%253Acom.sapportals.portal%253Adsm%2526debug%3D*; SAPWP_active=1; SMSESSION=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...17118.1452298948' HTTP_HOST: 'xxx.com:8080' HTTP_REFERER: 'xxx.com:8080/galaxy' HTTP_UPGRADE_INSECURE_REQUESTS: '1' HTTP_USER_AGENT: 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36' PATH_INFO: '/history/export_archive' QUERY_STRING: 'preview=True' REMOTE_ADDR: '10.20.52.124' REQUEST_METHOD: 'GET' SCRIPT_NAME: '/galaxy' SERVER_NAME: '0.0.0.0' SERVER_PORT: '8080' SERVER_PROTOCOL: 'HTTP/1.1'

WSGI Variables -------------- application: <paste.recursive.RecursiveMiddleware object at 0xc88eb50> controller_action_key: u'web.history.export_archive' is_api_request: False paste.cookies: (<SimpleCookie: SAPPORTALSDB0='urn%253Acom.sapportals.portal%253Adsm%2526debug%3D*' SAPWP_active='1' SMSESSION='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...7118.1452298948') paste.expected_exceptions: [<class 'paste.httpexceptions.HTTPException'>] paste.httpexceptions: <paste.httpexceptions.HTTPExceptionHandler object at 0xc88ead0> paste.httpserver.proxy.host: 'dummy' paste.httpserver.proxy.scheme: 'http' paste.httpserver.thread_pool: <paste.httpserver.ThreadPool object at 0xb8ae210> paste.parsed_querystring: ([('preview', 'True')], 'preview=True') paste.recursive.forward: <paste.recursive.Forwarder from /galaxy> paste.recursive.include: <paste.recursive.Includer from /galaxy> paste.recursive.include_app_iter: <paste.recursive.IncluderAppIter from /galaxy> paste.recursive.script_name: '/galaxy' paste.throw_errors: True request_id: '6abfe982bc1011e69fd4005056ab0b73' webob._parsed_query_vars: (GET([(u'preview', u'True')]), 'preview=True') wsgi process: 'Multithreaded' ------------------------------------------------------------