问题
I recently upgraded to new beta version of macOS 10.14 but after installing it when I tried to open my older version of Xcode 8.3.2, every time it gets crashed. Below is its details.
Symbol not found: _OBJC_IVAR_$_NSTextViewIvars.sharedData
回答1:
As discussed in a few places like here and here, Xcode 8 does not run on Mojave. The best approach at this point is to either migrate your application to run with the latest Xcode, or run a VM with High Sierra or earlier that still supports your required version of Xcode.
回答2:
Xcode 8.X.X is doesn't support on macos 10.12 later version.
Cause of issue: "DYLD, [0x4] Symbol missing"
and also doesn't meet the swift version. so you need to upgrade your Xcode version or downgrade your os version below 10.12
回答3:
Xcode 8's some versions is not compatible with macOS 10.14 just because of swift version. So, if you want XCode 8, did you try to upgrade first to 8.3 ?
来源：https://stackoverflow.com/questions/50725674/not-able-to-open-xcode-8-3-2-on-macos-10-14-beta