Internal Error: Sub-system: DBMUI, File: /quartus/db/dbmui/dbmui_manager.cpp, Line: 1179

Description

Due to a problem in the Quartus® II software version 12.0 SP2 or earlier, you may see this internal error when compiling your design after clicking Update Symbol or Block in the Block Editor.

Resolution

A patch is available to fix this problem in the Quartus II software version 12.0 SP2. Download and install patch 2.16 from the appropriate link below:

• Download the version 12.0 SP2 patch 2.16 for Windows (.exe)
• Download the version 12.0 SP2 patch 2.16 for Linux (.tar)
• Download the Readme for the Quartus II software version 12.0 SP2 patch 2.16 (.txt)

This problem is fixed beginning with the Quartus II software version 12.1.