Error (13076): The node "XXXX" has multiple drivers due to the non-tri-state driver "XXXX" - Error (13076): The node "XXXX" has multiple drivers due to the non-tri-state driver "XXXX" Description Due to a problem in the Intel® Quartus® Prime Pro Edition software version 19.1 and earlier, you may see this error when the design does not contains a complete Case declaration. Resolution To work around this problem, make sure your design contains the default state within the Case declaration. case (XX) 1: <user defined conditions>; 2: <user defined conditions>; 3: <user defined conditions>; default: <user defined conditions>; endcase Custom Fields values: ['novalue'] Troubleshooting 2007758875 False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro'] 19.3 19.1 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']