Unable to load data exception-- com.wm.lang.flow.FlowException No DATa loaded

We have a got a flow service which gets a file from location and loads it in the database table.
But the service is not loading the file and showing the below exception:

" com.wm.lang.flow.FlowException No DATa loaded "
The load service is given inside a sequence step which is child of branch step.

Please help me in the above mentioned issue.

Thanks in advance

Ragav J

The error you post is not enough to analyse whats going wrong there… what action you are doing in that flow service which you mentioned… are you reading the file though some custom code and then inserting it into database??
For getting file content, i would suggest you to use pub.file.getFile or equivalent java code … try to step into your flow and see where exactly its faling and hope you have try-catch implemented to catch the error details by *getlastError… try to post the error which you see there and the error point.