When I select an IPfrom the IP Catalog window of the PlanAhead tool, a message similar to the following appearsin the console:
"starting gui ...
ERROR: IPData 'xilinx.com:ip:microblaze_mcs:1.0' addPart found duplicate ISE Family: aartix7"
The addition of AArtix7 and Artix7L in ISE Design Suite 13.4 causes the error message above to be printed in the command window.
The error is harmless and does not affect the PlanAhead tool or IP core generation behavior.
This issue is scheduled to be fixed in ISE Design Suite 14.1.