Hi, I get the following error when trying to upload data to Galaxy AttributeError: 'NoneType' object has no attribute 'lower' Same error for many different types of files (fastq, sam, bam) some of which uploaded last week. What I've tried: Deleting browser cache Deleting cookie Deleting database/compiled_templates Deleting eggs/ Please let me know what else I should try / what I am doing wrong. More info below. Thank you! More information: TRACEBACK: URL: http://127.0.0.1:8080/datasets/59c76a119581e190/display/?preview=True File '/home/colleen/Work/workspace/ChIPSeq/tools/galaxy-dist/eggs/WebError-0.8a-py2.6.egg/weberror/evalexception/middleware.py', line 364 in respond app_iter = self.application(environ, detect_start_response) File '/home/colleen/Work/workspace/ChIPSeq/tools/galaxy-dist/eggs/Paste-1.6-py2.6.egg/paste/debug/prints.py', line 98 in __call__ environ, self.app) File '/home/colleen/Work/workspace/ChIPSeq/tools/galaxy-dist/eggs/Paste-1.6-py2.6.egg/paste/wsgilib.py', line 539 in intercept_output app_iter = application(environ, replacement_start_response) File '/home/colleen/Work/workspace/ChIPSeq/tools/galaxy-dist/eggs/Paste-1.6-py2.6.egg/paste/recursive.py', line 80 in __call__ return self.application(environ, start_response) File '/home/colleen/Work/workspace/ChIPSeq/tools/galaxy-dist/eggs/Paste-1.6-py2.6.egg/paste/httpexceptions.py', line 632 in __call__ return self.application(environ, start_response) File '/home/colleen/Work/workspace/ChIPSeq/tools/galaxy-dist/lib/galaxy/web/framework/base.py', line 145 in __call__ body = method( trans, **kwargs ) File '/home/colleen/Work/workspace/ChIPSeq/tools/galaxy-dist/lib/galaxy/web/controllers/dataset.py', line 361 in display mime = trans.app.datatypes_registry.get_mimetype_by_extension( data.extension.lower() ) AttributeError: 'NoneType' object has no attribute 'lower' Extra Data CGI Variables CONTENT_LENGTH '0' HTTP_ACCEPT 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8' HTTP_ACCEPT_CHARSET 'ISO-8859-1,utf-8;q=0.7,*;q=0.7' HTTP_ACCEPT_ENCODING 'gzip, deflate' HTTP_ACCEPT_LANGUAGE 'en-us,en;q=0.5' HTTP_CONNECTION 'keep-alive' HTTP_COOKIE 'galaxysession=c6ca0ddb55be603a2c2796e41769bc2412b1c87332f54f840b1876eab065f3113e1ca20ff6a4ab5c' HTTP_HOST '127.0.0.1:8080' HTTP_REFERER 'http://127.0.0.1:8080/history' HTTP_USER_AGENT 'Mozilla/5.0 (X11; Linux x86_64; rv:6.0.2) Gecko/20100101 Firefox/6.0.2' PATH_INFO '/datasets/59c76a119581e190/display/' QUERY_STRING 'preview=True' REMOTE_ADDR '127.0.0.1' REQUEST_METHOD 'GET' SERVER_NAME '127.0.0.1' SERVER_PORT '8080' SERVER_PROTOCOL 'HTTP/1.1' Extra Data WSGI Variables application <paste.debug.prints.PrintDebugMiddleware object at 0x7834350> paste.cookies (<SimpleCookie: galaxysession='c6ca0ddb55be603a2c2796e41769bc2412b1c87332f54f840b1876eab065f3113e1ca20ff6a4ab5c'>, 'galaxysession=c6ca0ddb55be603a2c2796e41769bc2412b1c87332f54f840b1876eab065f3113e1ca20ff6a4ab5c') paste.evalexception <weberror.evalexception.middleware.EvalException object at 0x6dd11d0> paste.evalexception.debug_count 1316648566 paste.expected_exceptions [<class 'paste.httpexceptions.HTTPException'>] paste.httpexceptions <paste.httpexceptions.HTTPExceptionHandler object at 0x7823090> paste.httpserver.thread_pool <paste.httpserver.ThreadPool object at 0x2b66f90> paste.printdebug_listeners [<cStringIO.StringO object at 0x6e24fb8>, <open file '<stderr>', mode 'w' at 0x7fb208c901e0>] paste.recursive.forward <paste.recursive.Forwarder from /> paste.recursive.include <paste.recursive.Includer from /> paste.recursive.include_app_iter <paste.recursive.IncluderAppIter from /> paste.recursive.script_name '' paste.remove_printdebug <function remove_printdebug at 0x6e23a28> paste.throw_errors True weberror.evalexception <weberror.evalexception.middleware.EvalException object at 0x6dd11d0> weberror.evalexception.debug_count 1316648566 webob._parsed_query_vars (MultiDict([('preview', 'True')]), 'preview=True') wsgi process 'Multithreaded'