Update Xcode 10.1 to 10.2 on High Sierra 10.13.6

Question

I'm trying to update Xcode 10.1 to 10.2 on my High Sierra 10.13.6 version.

The App Store window shows the update button, but the problem is after hitting that button, the circle on the upper-left corner is just rotating for hours and nothing else happens!

Since the difference between the two versions is not that huge, the update naturally must be downloaded and installed after some time, but in effect it's not that way!

How to solve that issue, please?

Answer 1

I am using Xcode10.2 on High Sierra 10.13.6, and can build several projects for my iPhone 5s and 6s Plus which working on iOS12.2. The process is similar to Damnum’s.

1. Change the name of working Xcode like Xcode10.1.
2. Download Xcode 10.2 and copy it into Applications folder. (The name is of course Xcode.)
3. Edit Xcode.app/Contents/Info.plist and change the Minimum System Version to 10.13.6 with Xcode10.1
4. Edit Xcode.app/Contents/Applications/FileMerge/Contents/Info.plist and change the Minimum System Version to 10.13.6 with Xcode10.1
5. Edit Xcode.app/Contents/Developer/Applications/Simulator.app/Contents/Info.plist and change the Minimum System Version to 10.13 with Xcode10.1
6. Launch Xcode (it is 10.2) and install the rest of items.
7. Now you can use iOS12.2 features in the Xcode.

I tested my own projects and several sample projects from iOS 12 App Development Essentials by Neil Smyth. All of them work fine on my devises including camera app.