Couldn't communicate with helper application

[WeedyWeedSmoker]

I compiled this core with success, but this message pops up : Couldn't communicate with helper application...

All the other cores I compiled or downloaded from here/inside the app are working fine, except from the 3 latest mednafen core updates, which give the same message...

Here are the commits that give this message : 04831b3 - Update Mednafen to 0.9.41 c34ac33 - Update Mednafen to 0.9.42 3247fcf - Add analog axis scale support

Same thing with the official experimental release and the compiled source code...

25/02/2017 05:44:39,276 OpenEmu[20368]: Helper Connection (0x7fa507ad6fc0) failed with error: Error Domain=NSCocoaErrorDomain Code=4097 "connection from pid 0" UserInfo={NSDebugDescription=connection from pid 0}

Process: OpenEmuHelperApp [20374] Path: /Applications/- Emulation/OpenEmu.app/Contents/Resources/OpenEmuHelperApp Identifier: OpenEmuHelperApp Version: 2.0.4 (2.0.4) Code Type: X86-64 (Native) Parent Process: OpenEmu [20368] Responsible: OpenEmuHelperApp [20374] User ID: 501

Date/Time: 2017-02-25 05:44:39.288 +0700 OS Version: Mac OS X 10.11.6 (15G1217) Report Version: 11 Anonymous UUID: 65EA74C6-FCA5-6A3C-4745-2BE72D184565

Time Awake Since Boot: 17000 seconds

System Integrity Protection: enabled

Crashed Thread: 4 Dispatch queue: com.apple.NSXPCConnection.user.20368

Exception Type: EXC_BREAKPOINT (SIGTRAP) Exception Codes: 0x0000000000000002, 0x0000000000000000 Exception Note: EXC_CORPSE_NOTIFY

Dyld Error Message: Symbol not found: _clock_gettime Referenced from: /Users/USER/Library/Application Support/OpenEmu/*/Mednafen Expected in: /usr/lib/libSystem.B.dylib

Thread 0:: Dispatch queue: com.apple.main-thread 0 libsystem_kernel.dylib 0x00007fff876b4f72 mach_msg_trap + 10 1 libsystem_kernel.dylib 0x00007fff876b43b3 mach_msg + 55 2 com.apple.CoreFoundation 0x00007fff883a0124 CFRunLoopServiceMachPort + 212 3 com.apple.CoreFoundation 0x00007fff8839f5ec CFRunLoopRun + 1356 4 com.apple.CoreFoundation 0x00007fff8839ee38 CFRunLoopRunSpecific + 296 5 com.apple.HIToolbox 0x00007fff8efe9935 RunCurrentEventLoopInMode + 235 6 com.apple.HIToolbox 0x00007fff8efe976f ReceiveNextEventCommon + 432 7 com.apple.HIToolbox 0x00007fff8efe95af _BlockUntilNextEventMatchingListInModeWithFilter + 71 8 com.apple.AppKit 0x00007fff9a880df6 _DPSNextEvent + 1067 9 com.apple.AppKit 0x00007fff9a880226 -[NSApplication _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 454 10 com.apple.AppKit 0x00007fff9a874d80 -[NSApplication run] + 682 11 OpenEmuHelperApp 0x000000000b1e3f37 -[OpenEmuXPCHelperApp launchApplication] + 77 (OpenEmuXPCHelperApp.m:47) 12 OpenEmuHelperApp 0x000000000b1e3b8f main + 384 (OpenEmuHelperAppMain.m:43) 13 libdyld.dylib 0x00007fff9cef15ad start + 1

Thread 1: 0 libsystem_kernel.dylib 0x00007fff876bb5e2 __workq_kernreturn + 10 1 libsystem_pthread.dylib 0x00007fff9158d578 _pthread_wqthread + 1283 2 libsystem_pthread.dylib 0x00007fff9158b341 start_wqthread + 13

Thread 2:: Dispatch queue: com.apple.libdispatch-manager 0 libsystem_kernel.dylib 0x00007fff876bbefa kevent_qos + 10 1 libdispatch.dylib 0x00007fff8a750165 _dispatch_mgr_invoke + 216 2 libdispatch.dylib 0x00007fff8a74fdcd _dispatch_mgr_thread + 52

Thread 3: 0 libsystem_kernel.dylib 0x00007fff876bb5e2 __workq_kernreturn + 10 1 libsystem_pthread.dylib 0x00007fff9158d578 _pthread_wqthread + 1283 2 libsystem_pthread.dylib 0x00007fff9158b341 start_wqthread + 13

Thread 4 Crashed:: Dispatch queue: com.apple.NSXPCConnection.user.20368 0 dyld 0x00007fff6a621075 dyld_fatal_error + 1 1 dyld 0x00007fff6a624094 dyld::fastBindLazySymbol(ImageLoader**, unsigned long) + 139 2 libdyld.dylib 0x00007fff9ceef262 dyld_stub_binder + 282 3 ??? 0x0000000011079008 0 + 285708296 4 org.openemu.Mednafen 0x00000000102b9e26 mednafeninit() + 70 5 org.openemu.Mednafen 0x00000000102b7f31 -[MednafenGameCore loadFileAtPath:error:] + 657 6 OpenEmuHelperApp 0x000000000b1e0074 -[OpenEmuHelperApp loadROMAtPath:romCRC32:romMD5:romHeader:romSerial:systemRegion:withCorePluginAtPath:systemPluginPath:error:] + 1234 (OpenEmuHelperApp.m:297) 7 OpenEmuHelperApp 0x000000000b1e43be -[OpenEmuXPCHelperApp loadROMAtPath:romCRC32:romMD5:romHeader:romSerial:systemRegion:usingCorePluginAtPath:systemPluginPath:completionHandler:] + 221 (OpenEmuXPCHelperApp.m:95) 8 com.apple.CoreFoundation 0x00007fff8839c9cc invoking + 140 9 com.apple.CoreFoundation 0x00007fff8839c85e -[NSInvocation invoke] + 286 10 com.apple.Foundation 0x00007fff87e17eb8 NSXPCCONNECTION_IS_CALLING_OUT_TO_EXPORTED_OBJECT + 17 11 com.apple.Foundation 0x00007fff87e17822 -[NSXPCConnection _decodeAndInvokeMessageWithData:] + 1123 12 com.apple.Foundation 0x00007fff87e172f0 message_handler + 705 13 libxpc.dylib 0x00007fff8b48456e _xpc_connection_call_event_handler + 35 14 libxpc.dylib 0x00007fff8b482de7 _xpc_connection_mach_event + 2198 15 libdispatch.dylib 0x00007fff8a752596 _dispatch_client_callout4 + 9 16 libdispatch.dylib 0x00007fff8a752a08 _dispatch_mach_msg_invoke + 555 17 libdispatch.dylib 0x00007fff8a74f200 _dispatch_queue_drain + 1207 18 libdispatch.dylib 0x00007fff8a75135f _dispatch_mach_invoke + 735 19 libdispatch.dylib 0x00007fff8a74f200 _dispatch_queue_drain + 1207 20 libdispatch.dylib 0x00007fff8a755707 _dispatch_queue_invoke + 549 21 libdispatch.dylib 0x00007fff8a74a40b _dispatch_client_callout + 8 22 libdispatch.dylib 0x00007fff8a74e29b _dispatch_root_queue_drain + 1890 23 libdispatch.dylib 0x00007fff8a74db00 _dispatch_worker_thread3 + 91 24 libsystem_pthread.dylib 0x00007fff9158d4de _pthread_wqthread + 1129 25 libsystem_pthread.dylib 0x00007fff9158b341 start_wqthread + 13

Thread 5: 0 libsystem_kernel.dylib 0x00007fff876bb5e2 __workq_kernreturn + 10 1 libsystem_pthread.dylib 0x00007fff9158d578 _pthread_wqthread + 1283 2 libsystem_pthread.dylib 0x00007fff9158b341 start_wqthread + 13

Thread 6: 0 libsystem_kernel.dylib 0x00007fff876bb5e2 __workq_kernreturn + 10 1 libsystem_pthread.dylib 0x00007fff9158d578 _pthread_wqthread + 1283 2 libsystem_pthread.dylib 0x00007fff9158b341 start_wqthread + 13

Thread 7:: com.apple.NSEventThread 0 libsystem_kernel.dylib 0x00007fff876b4f72 mach_msg_trap + 10 1 libsystem_kernel.dylib 0x00007fff876b43b3 mach_msg + 55 2 com.apple.CoreFoundation 0x00007fff883a0124 CFRunLoopServiceMachPort + 212 3 com.apple.CoreFoundation 0x00007fff8839f5ec CFRunLoopRun + 1356 4 com.apple.CoreFoundation 0x00007fff8839ee38 CFRunLoopRunSpecific + 296 5 com.apple.AppKit 0x00007fff9a9d6d95 _NSEventThread + 149 6 libsystem_pthread.dylib 0x00007fff9158d99d _pthread_body + 131 7 libsystem_pthread.dylib 0x00007fff9158d91a _pthread_start + 168 8 libsystem_pthread.dylib 0x00007fff9158b351 thread_start + 13

Thread 4 crashed with X86 Thread State (64-bit): rax: 0x00007fff6a65a290 rbx: 0x00007fac4ac4fb40 rcx: 0x0000000000000000 rdx: 0x0000000000000000 rdi: 0x00007fff6a65a400 rsi: 0x0000000000000000 rbp: 0x0000700000194c90 rsp: 0x0000700000194c78 r8: 0x00007fff6a64304c r9: 0x00000000fc000000 r10: 0x0000700000194a6a r11: 0x00007fff6a65a400 r12: 0x000000000b3be6f2 r13: 0x00007fac4af75cf0 r14: 0x00007fff6a65a400 r15: 0x0000000000000118 rip: 0x00007fff6a621075 rfl: 0x0000000000000246 cr2: 0x000000000b7f3000

Logical CPU: 0 Error Code: 0x00000000 Trap Number: 3

[clobber]

Symbol not found: _clock_gettime

Mednafen cannot be compiled on OS X 10.11 because clock_gettime() was not available until 10.12 Sierra.

[WeedyWeedSmoker]

Ok, Thanks for the reply !

clobber, do actually you know if using the libSystem.B.dylib from Sierra would work/solve the issue ?

[rudyrichter]

@WeedyWeedSmoker unfortunately it doesn't work that way. libSystem.B.dylib is only meant to work with the particular version of the OS that it comes with.

[clobber]

Resolved in 2287440f95e6b9c7743189c4b441417638912f9c