Problem in opening a project in platform designer system.

Hello,

I'm not exactly sure what happened when you re-visited the project. However, I can see the that the example design is originally created in Quartus II 15.1. Please be mindful of the steps needed to be taken when migrating to Pro.

Here is an online training: https://www.youtube.com/watch?v=P_6gemOLtjE

And documentation available: https://www.intel.com/content/www/us/en/docs/programmable/683475/19-4/migrating-to.html

Regards,

Nurina