ID:18642 Cannot import version-compatible database files from future versions of the Quartus Prime software.

CAUSE: You attempted to import version-compatible database files from a future version of the Quartus Prime software. However, because you exported the design database using a future version of the Quartus Prime software, the version-compatible database files cannot be imported to the current version of the Intel Quartus Prime software.

ACTION: Import version-compatible database files from an earlier version of the Intel Quartus Prime software.