So after waiting the four long hours of downloading Xcode 10, this popped up. I tried downloading it again, and again in incognito, but no matter how I download Xcode I still get this. I also have no other Macs to put Xcode onto, and I also tried using iZip which didn't work ethier. After looking at other forums they said to go to settings-privacy and scurity-allow apps from: - anywhere. However this method did not work. I updated my mac, restarted it, and I'm still stuck. The reason I need to get Xcode 10 is beacuse I have IOS 12 and it won't work with Xcode 9. I have a Mac Mini 2012, with a Core i5 and has done me good for the last 2 years.
Do I need to update to Mac os Mojave? Or keep reinstalling it untill it works?
Thanks in adavace, a keen, annoyed devloper.