Can't enable spell checker option in Xcode
Option is greyed out and I cannot enable spell checking in Xcode
I believe this is a bug. I am not sure if it has been fixed. Try make sure you’re on the latest Xcode version.
From Stack Overflow:
I believe this is a duplicate post but I'll answer anyway. This is an Xcode bug. There have been radars filed. As far as I am unaware there is no work around or fix currently.
That was posted at a similar time to when this was posted.