Xcode 8 Beta (null) was unable to service the request

Question

I have an app that worked fine in the released version of Xcode. I downloaded the beta and after I fixed all the little changes I ran it and it worked. I just came back and ran it again and I get an error saying

The request to open "com.matthewhsingleton.Smoke" failed . (null) was unable to service the request.

I have quit Xcode and reopened it, I have restarted my computer, tried different iPhone simulators and all produce the same resulte

Join [the discussion](https://forums.developer.apple.com/message/143094#143094) on the Apple Developer Forums. — Droppy, Jun 15 '16 at 06:45
None of these were working for me... So I decided to change the simulator from iPhone 7 to iPhone 6... It worked! — Junior Silva, Dec 08 '16 at 23:36

score 20 · Answer 1 · edited Oct 20 '16 at 12:38

20

My error was similar, instead of "(null)", the message was: "SpringBoard was unable to service the request"

Restarting the simulator worked for me.

edited Oct 20 '16 at 12:38

Carmen

6,177
1
35
40

answered Sep 28 '16 at 20:40

Felipe Andrade

509
6
23

score 18 · Accepted Answer · answered Jun 15 '16 at 06:55

18

After reading @Droppy suggestion I read the thread and it is a common issue. To solve it is as follows

Problem solved for by an Apple Engineer in the lab. It's an issue they're working on. The bottom line was that when I copied Xcode to Applications folder, there was a bit set on it and that was preventing it from communicating with the simulator.

To fix it: Copy-paste Xcode-beta.app from Applications folder to somewhere else, e.g. Documents folder. Delete Xcode-beta.app from Applications folder. Move Xcode-beta.app from Documents to Applications folder again.

Seen here https://forums.developer.apple.com/message/143094#143094

answered Jun 15 '16 at 06:55

RubberDucky4444

2,330
5
38
70

The answer is at the very bottom (as of this posting) – RubberDucky4444 Jun 15 '16 at 06:56
Also this solved the error of Playground: 'the file “playground.xcworkspace” doesn’t exist'. Thanks. – Ozgur Sahin Jun 19 '16 at 11:40
7

This is the weirdest, most voodoo fix I have seen in a long time. Maybe ever. – buildsucceeded Sep 12 '16 at 13:20
Didn't work for me. I hope they fix it soon. Or perhaps something else could also cause this...? – AmitaiB Sep 16 '16 at 02:54

score 4 · Answer 3 · answered Sep 25 '16 at 10:53

4

I had 2 versions of Xcode installed. Xcode 7 and 8. I resolved this issue by setting the command line tools to Xcode 8 in preferences. Open preferences -> Locations -> Command Line tools. Set that to Xcode 8.

answered Sep 25 '16 at 10:53

Yash Tamakuwala

1,789
1
24
33

Xcode 8 Beta (null) was unable to service the request

3 Answers3

Linked