Unexpected attribute error

I am using XML spy and i am getting this error with my xml input file.

This File is not valid:

    Unexpected attribute 'GID' in element 'PART'

and this is the line it goes to.

<PART GID="t_28_part_2" CHRCNT="490163" xmlns:ref="http://nothing">

When i run my stylesheet from the command line on this input file with xalan i 
get no problems and everything works fine and the way i want it to be. The 
problems come up when working in xml spy. I did not create the input file and 
for the must part i will not be able to change it, but i do not really 
understand what the error exactly means and if there is something i need to do 
to fix this error that comes up in Xml spy. If anyone has an idea or could 
explain what it means i would appreciate it.

Thanks,
Nick


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