ID:268108 The incremental routing feature is used in this STP file. The current release of the Quartus Prime software no longer supports this feature. If the STP file contains log entries, please read the system message for all entries affected.

CAUSE: You opened an Signal Tap File (.stp) file containing the usage of the incremental feature and chose to upgrade to the current version. The incremental routing feature is no longer supported in the current release of the Quartus Prime software.

ACTION: If you want to open this file to acquire data from an existing compatible device programming file, do not upgrade the version when this file is opened; otherwise, do nothing. All incremental routing usage is automatically converted to a compatible configuration.