Shady Alaa wrote:
> I am running a workflow, in one of its steps i use "getids" function from
> the WSNCBIBLAST (
> http://www.ebi.ac.uk/Tools/webservices/wsdl/WSNCBIBlast.wsdl) web service
> which returns the following error in taverna 1

Which version of Taverna 1 are you running it on?  There were bug fixes 
in 1.7.2 that are also fixed in 2.1.  If you are running 1.7.1 or 
earlier then that may explain the difference.

> Fault returned invoking webservice: Can't call method "attr" on an undefined
> value at WSNCBIBlast.pm line 140.
> 
> but in taverna 2 it works normally, is that a bug or am i missing something.

Alan


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