ID:171168 Compilation error may be caused by optimized reuse of previous compilation results for one or more partitions.

CAUSE: The Fitter encountered an error while performing a compilation time optimization that is automatically activated for small design changes. This compilation time optimization can cause a small area penalty because the optimization disables the sharing of physical resources between preserved and recompiled logic.

ACTION: If the logic from an earlier compilation caused the error message, you can disable accelerated incremental compilation by adding the ENABLE_ACCELERATED_INCREMENTAL_COMPILE OFF assignment to the Quartus Prime Settings File (.qsf) of the design.