Incompatible project version - Xcode 9.2

[oc-tk]

After downloading repo and trying open it in my Xcode (9.2 9C40b) I am getting this pop up:
"Failed to load project at '~/Downloads/noncereboot1131UI-master/noncereboot1131UI.xcodeproj', incompatible project version."

First time I have met this error.

[pwn20wndstuff]

Try downloading the project again. It may be corrupted.

[albyvar]

Select .xcodeproj file with right click, select show package contents, now open the .pbx file with textedit and replace the 50 with a 48

[yuzhouheike]

thanks for your help!and I want know why replace 50 with 48 @albyvar

[albyvar]

@yuzhouheike

objectversion 50 is for xcode 9.3+ compatibility
objectversion 48 is for xcode 8.0+ compatibility