Sudden error "No .NET Business Connector session found"

Recently i had a strange error for some pages in the EP, they suddenly stoped working and simply gave an error "No .NET Business Connector session found". When i looked in the Event Log on the IIS machine i noticed that one of the Ax datasets was issuing a compilation error.

The solution was to simply compile the whole dataset node in the AOT and restart the IIS. After that all the pages started to work fine again.

Similar issue has occured when installing EP, see Dilpips blog http://daxdilip.blogspot.com/2008/05/no-net-business-connector-session-found.html

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