I have a problem with making bootable USB.
I'm getting this error:
Macintosh:~ **$ sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install\ macOS\ High\ Sierra.app Ready to start. To continue we need to erase the volume at /Volumes/Untitled. If you wish to continue type (Y) then press return: y APFS disks may not be used as bootable install media.
On the same usb drive I had Yosemite, but for some reason I can't make it work with High Sierra. Also tried to erase it in Disk Utility(no errors).
Can somebody help?