Kron4ek commented on issue #10 at Kron4ek / Vortex Minecraft Launcher

Kron4ek
2021-06-20T07:59:26Z

Create a new clean folder and download 1.17 into it. Also, 1.17 version requires at least Java 16 (you can download it from here, for example), it doesn't work on older Java versions at all.