Due to a problem in the Intel® Quartus® Prime Pro edition software version 19.1, this error may be seen when using the Automatic Register Duplication feature via the DUPLICATE_REGISTER assigment in the Intel® Quartus® Prime Settings file (.qsf).
A patch is available to fix this problem for the Intel® Quartus® Prime Pro Edition software version 19.1. Download and install Patch 0.36 from the appropriate link below.
- Download Intel® Quartus® Prime Pro edition software version 19.1 patch 0.36 for Windows (.exe)
- Download Intel® Quartus® Prime Pro edition software version 19.1 patch 0.36 for Linux (.run)
- Download readme file for the Intel® Quartus® Prime Pro edition software version 19.1 patch 0.36 (.txt)
Alternatively, you can migrate your design to the Intel® Quartus® Prime Pro edition software version 19.3 which includes the fix for the problem.