Migrating your Stratix V device design from the Quartus II software release version 13.1 to release version 14.0 generates error messages - Migrating your Stratix V device design from the Quartus II software release version 13.1 to release version 14.0 generates error messages Description When you upgrade your Stratix® V device design IP from the Quartus® II software release version 13.1 to release version 14.0, you might generate the following error messages: Error (138003): Can't write incremental compilation assignments. Quartus II Settings File D:/altera/14.0/tiger_test/top_restored_upgrade/top.qsf is unwritable. Error (140001): Can't write LogicLock assignments. The Quartus II Settings File D:/altera/14.0/tiger_test/top_restored_upgrade/top.qsf is unwritable. Resolution You can ignore these error messages; your project will successfully compile. Custom Fields values: ['novalue'] Troubleshooting novalue True ['novalue'] ['FPGA Dev Tools Quartus II Software'] novalue 14.0 ['Stratix® V FPGAs'] ['novalue'] ['novalue'] ['novalue']