Hi All,

I faced a problem after I tested the Bio-Blend API. I cannot access the history anymore with the below error messages. Although, I tried installation from the scratch, but I got the same error message. Please let me know how to fix this problem. Thanks! 

(GALAXY User Interface)

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  "xhr": {

    "readyState": 4,

    "responseText": "{\"err_msg\": \"Uncaught exception in exposed API method:\", \"err_code\": 0}",

    "responseJSON": {

      "err_msg": "Uncaught exception in exposed API method:",

      "err_code": 0

    },

    "status": 500,

    "statusText": "Internal Server Error",

    "responseHeaders": {

      "Date": "Wed, 03 Dec 2014 15:50:02 GMT\r",

      "cache-control": "max-age=0,no-cache,no-store\r",

      "Server": "PasteWSGIServer/0.5 Python/2.7.8\r",

      "Connection": "close\r",

      "content-type": "application/json\r"

    }

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I found the error message in the Galaxy instance shell interface.

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galaxy.web.framework.decorators ERROR 2014-12-03 10:50:02,279 Uncaught exception in exposed API method:

Traceback (most recent call last):

  File "/home/bxp12/galaxy-dist/lib/galaxy/web/framework/decorators.py", line 244, in decorator

    rval = func( self, trans, *args, **kwargs)

  File "/home/bxp12/galaxy-ist/lib/galaxy/webapps/galaxy/api/history_contents.py", line 76, in index

    and ( history_id == trans.security.encode_id( trans.history.id ) ) ):

AttributeError: 'NoneType' object has no attribute 'id'

=======================================================

Best,

Bongsoo