ID:169306 Too many output or bidirectional pins (<number>) are assigned in the custom region <name>. The custom region has only <number> pin location(s) supporting output operation.

CAUSE: You assigned the specified number of output or bidirectional pins in the specified custom region. However, the number of assigned output or bidirectional pins exceeds the specified limit for that custom region.

ACTION: Remove some of the output or bidirectional pins from the specified custom region.