[Virtuoso-users] SQ074: Line 1: SP031: SPARQL: Internal error

[Alex]

Hi,

I am getting the following error with virtuoso 6.1.5:

SQ074: Line 1: SP031: SPARQL:
Internal error: 'output:valmode' declaration conflicts with 'output:format'

trying to execute the query below:
sparql ask from <g>
{ filter not exists{<uuid> wat:something ?o}}

I am trying to check the existence of property instances with subject
a given uuid.

What could be wrong? I think it had worked in 6.1.3. Thanks.