Xcode plugin ... FATAL unknown error on unit tests.

[Kaolin Fire]

I'm stumbling blindly on where exactly to debug a failure with my setup of

jenkins/xcode-plugin and my project .... 

20:44:21 ** TEST FAILED **
20:44:21 
20:44:22 13:44:10.210 xctest[95011:6101986] _XCT_testBundleReadyWithProtocolVersion:minimumVersion: reply received
20:44:22 13:44:10.214 xctest[95011:6101986] _IDE_startExecutingTestPlanWithProtocolVersion:16
20:44:22 Test Suite 'All tests' started at 2016-09-14 13:44:10.261
20:44:22 FATAL: ip-REDACTED: ip-REDACTED: unknown error
20:44:22 y;
20:44:22 FATAL: ip-REDACTED: ip-REDACTED: unknown error
20:44:22 eamErrorCodeKey=-1, NSErrorFailingURLKey=https://REDACTED/api/1.1/image/4C3DCAC2-53DE-485A-875C-835725A88871/, _kCFStreamErrorDomainKey=4, NSUnderlyingError=0x78e863c0 "The operation couldn’t be completed. (kCFErrorDomainCFNetwork error -1017.)"}
20:44:22 FATAL: ip-REDACTED: ip-REDACTED: unknown error
20:44:22 ;
20:44:22 FATAL: ip-REDACTED: ip-REDACTED: unknown error
20:44:22 Build step 'Xcode' marked build as failure
20:44:23 Recording test results
20:44:23 ERROR: Step ‘Publish JUnit test result report’ failed: No test report files were found. Configuration error?
20:44:23 Finished: FAILURE

help!? :)

Jenkins 2.9, xcode-plugin 1.4.9

[Kaolin Fire]

"FATAL: ip-REDACTED: ip-REDACTED: unknown error" was the culprit for the tests not parsing. I added the hostname ip-REDACTED to /etc/hosts and everything worked.