| CAUSE: |
The project directory you specified in the What is the working directory for this project box in the New Project wizard (File menu) contains a Simulator Settings File (.ssf) with the same name as the top-level design entity you specified in the What is the name of the top-level design entity in your project box. When you create a new project, the Quartus II software automatically creates an SSF with the same name as the top-level design entity you specify, so the Quartus II software will overwrite the specified SSF with the new SSF of the same name. The Quartus II software is asking if you want to select a new top-level design entity name so that you do not delete any existing Simulator settings. |
