Mendix Studio to Mendix Studio Pro

I’m currently following the Rapid Developer course and am now in the stage where I have to start using Mendix Studio Pro. However, when I try to open my app in Studio Pro it gives me an error saying “app could not be opened because it was created with a newer version of Mendix Studio Pro (8.15.1), so I download that version and that it states “the project you are trying to open was created with Mendix Studio Pro 8.15.0 which could not be found.. So, I keep getting sent back and forth between the two but am never able to work on my app. Does anyone know how I can solve this problem?
1 answers

If you open Studio Pro 8.15.1 and then manually open the project you have on disk, there should be no issues. 

What steps are you taking? Double clicking the `.mpr` file on disk? Does Studio Pro open or does the version selector open with this error message?