Error Disk I/O in Quick Help Inspector Xcode9

Question

I have been using Xcode recently when I noticed that the Quick Help tab wasn't showing what is used to show, it was just displaying

Error
Domain=com.apple.DNTDocumentationSupport Code=0 "disk I/O error" UserInfo=
{NSLocalizedDescription=disk I/O error}

I looked up how to fix it, but I got no results.

Does anyone know how to fix this?

Might want to run a disk check, the disk could _actually_ be failing, or there is some corrupt data present. — Matt Clark, May 15 '18 at 23:02
@MattClark Actually your answer helped me figure out the solution. I just had to restart my computer... — Lunbun, May 15 '18 at 23:27
I have the same problem. Restarting the computer and xCode had no effect. Also did the latest update, no change. — Owen Godfrey, May 17 '18 at 06:28

score 13 · Accepted Answer · answered May 16 '18 at 18:37

13

I've been facing this issue the past hour or so and the only fix I've found is to restart Xcode. Will report back if it comes back.

answered May 16 '18 at 18:37

user1898712

1 Answers1