ID:12753 Perform Analysis and Elaboration before opening the State Machine Viewer.

CAUSE: You attempted to open the State Machine Viewer, but the Quartus Prime software cannot open the State Machine Viewer until Analysis & Elaboration finishes processing your design. Performing Analysis & Elaboration generates the State Machine netlist needed to generate the data in the State Machine Viewer.

ACTION: Perform Analysis & Elaboration and then open the State Machine Viewer.