Error loading XCTest, no suitable image found.

Question

I have recently updated my Xcode and started having this error.

2014-11-03 15:03:54.222 App[13141:60b] Error loading /private/var/mobile/Applications/677127BD-5230-4D5F-B70E-AF728439D34B/tmp/AppTests.xctest/AppTests:  dlopen(/private/var/mobile/Applications/677127BD-5230-4D5F-B70E-AF728439D34B/tmp/AppTests.xctest/AppTests, 262): no suitable image found.  Did find:
    /private/var/mobile/Applications/677127BD-5230-4D5F-B70E-AF728439D34B/tmp/AppTests.xctest/AppTests: code signature invalid for '/private/var/mobile/Applications/677127BD-5230-4D5F-B70E-AF728439D34B/tmp/AppTests.xctest/AppTests'
DevToolsBundleInjection: Error loading bundle '/private/var/mobile/Applications/677127BD-5230-4D5F-B70E-AF728439D34B/tmp/AppTests.xctest'

I have done my Google search as usual. But I haven't found any solutions yet. Source I have looked and tried to resolve my issue with is,

1. http://marcschwieterman.com/blog/testing-in-the-sandbox/

When it happens?

It only shows this error if I run uni test on device. On simulator it works as expected. Running application from normal target does not show this error.

When error shows up while running Uni Test app does not crash. It just fails to load xctests.

Anyone having similar issues? and manage to resolve it?

Answer 1

I've encountered exactly the same problem. I was able to fix the problem by setting the provisioning profile to something other than Automatic on both targets (the test and the test host).

I verified this was the problem by reverting it back to automatic, and the problem reoccured.

Answer 2

Xcode 10 here.

For me the issue was the discrepancy between the Project deployment target and the Target deployment target. Once I had them matching, XCTest started working.

Answer 3

@tagy22's comment worked for me

Had this error, I had to set both targets provisioning profile to a wildcard profile.