ID:15434 WYSIWYG DSP block output primitive "<name>" is connected to "<name>" and "<name>" chain_in ports. Only one chain_in fan-out is allowed

CAUSE: The specified WYSIWYG DSP block output primitive is connected to chain_in ports of the other two WYSIWYG DSP block output primitives. Only one chain_in fanout is allowed.

ACTION: You can use external adder for one of these two WYSIWYG DSP block output primitives.