Xcode 9.4 : Error generating code coverage

Question

I'm running all test cases of project (cmd + U) then all of sudden this error message pops-up with no reason. I'm using Xcode 9.4.

Any fix?

any logs in console about error ? – Ramesh.G Jun 08 '18 at 15:15 — Ramesh.G, Jun 08 '18 at 15:15
@Ramesh.G : Nothing on console and that is wondering part. – Jayprakash Dubey Jun 11 '18 at 04:56 — Jayprakash Dubey, Jun 11 '18 at 04:56

score 4 · Accepted Answer · answered Jun 12 '18 at 17:16

4

Is is possible you are running on device and it is locked?

The same thing just happened for me ("Error Generating Code Coverage" when trying to run all tests) and then I realized that Xcode was trying to build to my phone, which was locked. It ran ok on my phone after I unlocked it (and fine on the simulator as well).

answered Jun 12 '18 at 17:16

lemon lime pomelo

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Thanks for this. While the device I was trying to deploy to was definitely unlocked, I also had another iPhone plugged in that was. Disconnecting that iPhone made the error go away for me. – Albert Armea Aug 22 '18 at 20:55

score 2 · Answer 2 · answered Jun 26 '18 at 20:10

I also had this problem and was able to solve it by running on a simulator rather than on my iPhone. If that doesn't work for you, look in the Report navigator (look for this button: ) I had a failing Build Log in there with a message like this:

Test target MyAppTests encountered an error (Unable to connect to test manager on xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx If you believe this error represents a bug, please attach the log file at /var/folders/…filename.log)

If you have a message like that, take a look at the log file… it's what made me realise it was trying to connect to my iPhone.

score -2 · Answer 3 · answered Aug 16 '18 at 02:22

-2

Just restart your device. This simple way fix my problem.

answered Aug 16 '18 at 02:22

yonlau

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Xcode 9.4 : Error generating code coverage

3 Answers3