Error Davinci Resolve 17 does not support Final Cut Pro..

I believe I have the last version of Davinci - Davinci Resolve 17 - I downloaded it from the website. However, I am still getting the error: Davinci Resolve does not support Final Cut Pro X XML 1.3, 1.4, 1.5, 1.6, 1.7 and 1.8. Do I need the paid version to open these files?
I've tried opening Premiere XML and prproj. but it is also not possible. Please help!

I've tried opening Premiere XML and prproj. but it is also not possible. Please help!

