ID:18527 Perform normal compilation and Fast Forward before opening the Fast Forward Viewer.

CAUSE: You attempted to open the Fast Forward Viewer, but the Quartus Prime software cannot open the Fast Forward Viewer until the Fast Forward netlist is generated. To generate the Fast Forward netlist, you must either perform normal compilation or perform a partition merge for incremental compilation, then followed by Fast Forward. After the Fast Forward netlist is generated, the Fast Forward Viewer displays the data.

ACTION: Perform normal compilation or perform a partition merge for incremental compilation, followed by Fast Forward, and then open the Fast Forward Viewer .