ID:12862 Can't place combinational node "<name>" and combinational node "<name>" in the same ALM -- nodes appear consecutively in a carry chain

CAUSE: The specified combinational nodes appear consecutively in a carry chain, and must be placed in the same Adaptive Logic Module (ALM). However, the Fitter cannot place the specified combinational nodes in the same ALM.

ACTION: Refer to the following messages for the reason why the carry chain could not be placed and modify the combinational nodes in the carry chain so that the combinational node can be placed legally within an ALM.