Crash on launching unit test target using Xcode 7

Question

This only happens in Xcode 7 using the iOS 9 SDK - EXC_BAD_ACCESS error in the return UIApplicationMain(argc, argv, nil, nil); line return UIApplicationMain(argc, argv, nil, nil); in int main(int argc, char *argv[])

Also see a bunch of log output: ObjectiveC.gcda: cannot merge previous GCDA file: corrupt arc tag (0x614e6269)

Stacktrace:

 #0 0x017a71e6 in llvm_gcda_emit_function () #1 0x001a8556 in __llvm_gcov_writeout () #2 0x017a8162 in llvm_writeout_files () #3 0x07a400bc in __cxa_finalize_ranges () #4 0x07a40159 in __cxa_finalize () #5 0x07a40474 in exit () #6 0x05cdd099 in ___XCTestMain_block_invoke () #7 0x05cdd0b3 in ___XCTestMain_block_invoke_2 () #8 0x05c89122 in -[XCTestDriver _runSuite] () #9 0x05c8a128 in -[XCTestDriver _checkForTestManager] () #10 0x05c8a5fd in -[XCTestDriver runTestConfiguration:completionHandler:] () #11 0x05cdce12 in _XCTestMain () #12 0x025f85eb in ____XCBundleInjection_block_invoke_2 () #13 0x06b9ad00 in __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ () #14 0x06b90683 in __CFRunLoopDoBlocks () #15 0x06b8fdb8 in __CFRunLoopRun () #16 0x06b8f706 in CFRunLoopRunSpecific () #17 0x06b8f51b in CFRunLoopRunInMode () #18 0x0879c664 in GSEventRunModal () #19 0x0879c4a1 in GSEventRun () #20 0x047dc28f in UIApplicationMain () #21 0x00400794 in main at /Users/al/dev/ios/hinge-dev/Hinge/main.m:18 #22 0x07992a21 in start () 

I tried changing a bunch of Xcode build settings to disable code coverage, but failed. Any help appreciated!

Answer 1

Disabling code coverage for all assembly purposes resolves this problem, answer here: Dozens of "profiling: invalid arc tag"; when starting code coverage in Xcode 5