# Fall back : Mac create cpthost app failed **URL:** \ **Category:** Electron\ **Created:** [March 30, 2020, 2:25pm UTC](https://devforum.zoom.us/t/fall-back-mac-create-cpthost-app-failed/10184 "2020-03-30T14:25:04Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![1223229224](https://avatars.discourse-cdn.com/v4/letter/1/cab0a1/32.png) [@1223229224](https://devforum.zoom.us/u/1223229224)\ **Post date:** [March 30, 2020, 2:25pm UTC](https://devforum.zoom.us/t/fall-back-mac-create-cpthost-app-failed/10184/1 "2020-03-30T14:25:04Z")
**Description** When I finished signing the electron application, the application calling zoom sdk crashed. Successful in unsigned state. This is why, after viewing the log of [zoom.us](http://zoom.us), I posted it … ![image](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/2X/a/ab8bb32be6634a3bc050939b1086c3139de07d50.png) **Which version?** v4.6.15094.0218 Base SDK versions: Win32 native SDK version: zoom-sdk.4.6.15074.0203 Mac native SDK version: All\_mac\_sdk\_4.6.15094.0218 macos version: 10.15.3 **Additional context** The login interface calling sdk was successful ![image](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/2X/5/5337a2c04a3866fffc7dbaff0474aa9025e7082a.png) ---
**Author:** ![carson.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/carson.zoom/32/785_2.png) [@carson.zoom](https://devforum.zoom.us/u/carson.zoom)\ **Post date:** [March 31, 2020, 4:00am UTC](https://devforum.zoom.us/t/fall-back-mac-create-cpthost-app-failed/10184/2 "2020-03-31T04:00:25Z")
Hi [1223229224](https://devforum.zoom.us/u/1223229224)， Thanks for the post. The log in CptShare does not reveal the reason why the app crashes. Was the signing process was successful? Could you provide the steps to reproduce this crash? Thanks! ---
**Author:** ![1223229224](https://avatars.discourse-cdn.com/v4/letter/1/cab0a1/32.png) [@1223229224](https://devforum.zoom.us/u/1223229224)\ **Post date:** [March 31, 2020, 5:31am UTC](https://devforum.zoom.us/t/fall-back-mac-create-cpthost-app-failed/10184/3 "2020-03-31T05:31:43Z")
The signature was successful. The SDK can be called successfully when running in the development environment. After each signature is completed, the installation app starts to call the SDK and immediately flashes back. ---
**Author:** ![1223229224](https://avatars.discourse-cdn.com/v4/letter/1/cab0a1/32.png) [@1223229224](https://devforum.zoom.us/u/1223229224)\ **Post date:** [March 31, 2020, 5:40am UTC](https://devforum.zoom.us/t/fall-back-mac-create-cpthost-app-failed/10184/4 "2020-03-31T05:40:53Z")
I have this question every time, what should I do ---
**Author:** ![bella.tu](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/bella.tu/32/1227_2.png) [@bella.tu](https://devforum.zoom.us/u/bella.tu)\ **Post date:** [March 31, 2020, 5:57am UTC](https://devforum.zoom.us/t/fall-back-mac-create-cpthost-app-failed/10184/5 "2020-03-31T05:57:15Z")
Hi 1.Please make sure had re-sign all sdk file. 2.Please send us the crash log(~/Library/Logs/DiagnosticReports/appName) or sdk log(~/Library/Logs/AppName). ---
**Author:** ![1223229224](https://avatars.discourse-cdn.com/v4/letter/1/cab0a1/32.png) [@1223229224](https://devforum.zoom.us/u/1223229224)\ **Post date:** [March 31, 2020, 6:21am UTC](https://devforum.zoom.us/t/fall-back-mac-create-cpthost-app-failed/10184/7 "2020-03-31T06:21:24Z")
Date/Time: 2020-03-31 14:00:46 +0800 End time: 2020-03-31 14:04:09 +0800 OS Version: Mac OS X 10.14.6 (Build 18G103) Architecture: x86\_64h Report Version: 28 Incident Identifier: 02DC2BC5-3558-4170-8133-A245ED2281EF Data Source: Microstackshots Shared Cache: 0x163b8000 CB0B7642-068B-3F36-88EB-4BF2C71067CA Command: leaplearner Path: /Applications/leaplearner.app/Contents/MacOS/leaplearner Identifier: com.leaplearner.leaplearnerplatform Version: 2.1.37 (2.1.37) PID: 12460 Event: wakeups Action taken: none Wakeups: 45001 wakeups over the last 209 seconds (215 wakeups per second average), exceeding limit of 150 wakeups per second over 300 seconds Wakeups limit: 45000 Limit duration: 300s Wakeups caused: 45001 Duration: 202.35s Steps: 39 Hardware model: iMac19,2 Active cpus: 6 Fan speed: 1198 rpm Heaviest stack for the target process: 34 start + 1 (libdyld.dylib + 91093) [0x7fff6dcc73d5] 34 ??? (leaplearner + 6576) [0x1047139b0] 34 AtomMain + 84 (Electron Framework + 8404) [0x105a0a0d4] 34 ??? (Electron Framework + 32613284) [0x1079223a4] 34 ??? (Electron Framework + 61635855) [0x1094cfd0f] 34 ??? (Electron Framework + 32616273) [0x107922f51] 34 ??? (Electron Framework + 32617182) [0x1079232de] 34 ??? (Electron Framework + 11889348) [0x10655eac4] 34 ??? (Electron Framework + 11910162) [0x106563c12] 34 ??? (Electron Framework + 11901936) [0x106561bf0] 34 ??? (Electron Framework + 11902387) [0x106561db3] 34 ??? (Electron Framework + 36735832) [0x107d10b58] 34 ??? (Electron Framework + 37289279) [0x107d97d3f] 34 ??? (Electron Framework + 37294588) [0x107d991fc] 34 -[NSApplication run] + 699 (AppKit + 79240) [0x7fff3f35c588] 33 -[NSApplication(NSEvent) \_nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 1361 (AppKit + 103531) [0x7fff3f36246b] 33 \_DPSNextEvent + 1135 (AppKit + 108413) [0x7fff3f36377d] 33 \_BlockUntilNextEventMatchingListInModeWithFilter + 64 (HIToolbox + 44150) [0x7fff40fcac76] 33 ReceiveNextEventCommon + 603 (HIToolbox + 44773) [0x7fff40fcaee5] 33 RunCurrentEventLoopInMode + 292 (HIToolbox + 45483) [0x7fff40fcb1ab] 33 CFRunLoopRunSpecific + 455 (CoreFoundation + 239134) [0x7fff41d6c61e] 15 \_\_CFRunLoopRun + 2130 (CoreFoundation + 241858) [0x7fff41d6d0c2] 14 \_\_CFRunLoopDoTimers + 330 (CoreFoundation + 368306) [0x7fff41d8beb2] 6 \_\_CFRunLoopDoTimer + 851 (CoreFoundation + 369516) [0x7fff41d8c36c] 6 **CFRUNLOOP\_IS\_CALLING\_OUT\_TO\_A\_TIMER\_CALLBACK\_FUNCTION** + 20 (CoreFoundation + 370624) [0x7fff41d8c7c0] 6 ??? (zVideoApp + 453795) [0x1163d7ca3] 6 ??? (zVideoApp + 936229) [0x11644d925] 6 ??? (mcm + 224941) [0x10f5ceead] 6 ??? (mcm + 222064) [0x10f5ce370] 6 main\_heartbeat + 89 (util + 136821) [0x110e2a675] 3 ssb::thread\_wrapper\_t::thread\_run(void\*) + 48 (util + 92288) [0x110e1f880] 3 ssb::thread\_wrapper\_t::process\_msg(unsigned int) + 76 (util + 94818) [0x110e20262] 3 ssb::thread\_wrapper\_t::process\_timer() + 225 (util + 95555) [0x110e20543] 2 ssb::timer\_queue\_t::do\_timer(unsigned int) + 110 (util + 111118) [0x110e2420e] 1 ??? (util + 110385) [0x110e23f31] Powerstats for: leaplearner [12460] UUID: 3788637B-0A53-3737-B3B6-C827ABF3E314 Path: /Applications/leaplearner.app/Contents/MacOS/leaplearner Architecture: x86\_64 Parent: UNKNOWN [1] UID: 501 Footprint: 153.73 MB -\> 140.63 MB (-13.10 MB) Start time: 2020-03-31 14:00:46 +0800 End time: 2020-03-31 14:04:09 +0800 Num samples: 39 (100%) CPU Time: 3.681s Primary state: 18 samples Non-Frontmost App, Non-Suppressed, Kernel mode, Effective Thread QoS User Interactive, Requested Thread QoS User Interactive, Override Thread QoS Unspecified User Activity: 0 samples Idle, 39 samples Active Power Source: 0 samples on Battery, 39 samples on AC 34 start + 1 (libdyld.dylib + 91093) [0x7fff6dcc73d5] 34 ??? (leaplearner + 6576) [0x1047139b0] 34 AtomMain + 84 (Electron Framework + 8404) [0x105a0a0d4] 34 ??? (Electron Framework + 32613284) [0x1079223a4] 34 ??? (Electron Framework + 61635855) [0x1094cfd0f] 34 ??? (Electron Framework + 32616273) [0x107922f51] 34 ??? (Electron Framework + 32617182) [0x1079232de] 34 ??? (Electron Framework + 11889348) [0x10655eac4] 34 ??? (Electron Framework + 11910162) [0x106563c12] 34 ??? (Electron Framework + 11901936) [0x106561bf0] 34 ??? (Electron Framework + 11902387) [0x106561db3] 34 ??? (Electron Framework + 36735832) [0x107d10b58] 34 ??? (Electron Framework + 37289279) [0x107d97d3f] 34 ??? (Electron Framework + 37294588) [0x107d991fc] 34 -[NSApplication run] + 699 (AppKit + 79240) [0x7fff3f35c588] 33 -[NSApplication(NSEvent) \_nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 1361 (AppKit + 103531) [0x7fff3f36246b] 33 \_DPSNextEvent + 1135 (AppKit + 108413) [0x7fff3f36377d] 33 \_BlockUntilNextEventMatchingListInModeWithFilter + 64 (HIToolbox + 44150) [0x7fff40fcac76] 33 ReceiveNextEventCommon + 603 (HIToolbox + 44773) [0x7fff40fcaee5] 33 RunCurrentEventLoopInMode + 292 (HIToolbox + 45483) [0x7fff40fcb1ab] 33 CFRunLoopRunSpecific + 455 (CoreFoundation + 239134) [0x7fff41d6c61e] 15 \_\_CFRunLoopRun + 2130 (CoreFoundation + 241858) [0x7fff41d6d0c2] 14 \_\_CFRunLoopDoTimers + 330 (CoreFoundation + 368306) [0x7fff41d8beb2] 6 \_\_CFRunLoopDoTimer + 851 (CoreFoundation + 369516) [0x7fff41d8c36c] 6 **CFRUNLOOP\_IS\_CALLING\_OUT\_TO\_A\_TIMER\_CALLBACK\_FUNCTION** + 20 (CoreFoundation + 370624) [0x7fff41d8c7c0] 6 ??? (zVideoApp + 453795) [0x1163d7ca3] 6 ??? (zVideoApp + 936229) [0x11644d925] 6 ??? (mcm + 224941) [0x10f5ceead] 6 ??? (mcm + 222064) [0x10f5ce370] 6 main\_heartbeat + 89 (util + 136821) [0x110e2a675] 3 ssb::thread\_wrapper\_t::thread\_run(void\*) + 48 (util + 92288) [0x110e1f880] 3 ssb::thread\_wrapper\_t::process\_msg(unsigned int) + 76 (util + 94818) [0x110e20262] 3 ssb::thread\_wrapper\_t::process\_timer() + 225 (util + 95555) [0x110e20543] 2 ssb::timer\_queue\_t::do\_timer(unsigned int) + 110 (util + 111118) [0x110e2420e] 1 ??? (util + 110530) [0x110e23fc2] 1 ??? (mcm + 224249) [0x10f5cebf9] 1 ??? (mcm + 221666) [0x10f5ce1e2] 1 ??? (mcm + 446482) [0x10f605012] 1 \_\_sysctlbyname + 10 (libsystem\_kernel.dylib + 6794) [0x7fff6ddfca8a] 1 ??? (util + 110385) [0x110e23f31] 1 1 ssb::timer\_queue\_t::do\_timer(unsigned int) + 105 (util + 111113) [0x110e24209] 1 3 ssb::thread\_wrapper\_t::thread\_run(void\*) + 40 (util + 92280) [0x110e1f878] 3 ssb::thread\_wrapper\_t::wait(unsigned int) + 32 (util + 94724) [0x110e20204] 3 poll + 10 (libsystem\_kernel.dylib + 37742) [0x7fff6de0436e] 3 \_\_CFRunLoopDoTimer + 1701 (CoreFoundation + 370366) [0x7fff41d8c6be] 2 \_\_CFRepositionTimerInMode + 135 (CoreFoundation + 237338) [0x7fff41d6bf1a] 2 mk\_timer\_arm + 10 (libsystem\_kernel.dylib + 5034) [0x7fff6ddfc3aa] 1 \_\_CFRepositionTimerInMode + 98 (CoreFoundation + 237301) [0x7fff41d6bef5] 1 DYLD-STUB$$\_\_bzero + 0 (libsystem\_platform.dylib + 30064) [0x7fff6deb5570] 1 2 \_\_CFRunLoopDoTimer + 1326 (CoreFoundation + 369991) [0x7fff41d8c547] 1 CFSetGetValue + 14 (CoreFoundation + 234721) [0x7fff41d6b4e1] 1 1 \_\_CFRunLoopFindMode + 187 (CoreFoundation + 233750) [0x7fff41d6b116] 1 \_pthread\_mutex\_firstfit\_lock\_slow + 76 (libsystem\_pthread.dylib + 5179) [0x7fff6deb943b] 1 1 \_\_CFRunLoopDoTimer + 1177 (CoreFoundation + 369842) [0x7fff41d8c4b2] 1 CFSetGetCount + 46 (CoreFoundation + 228344) [0x7fff41d69bf8] 1 1 \_\_CFRunLoopDoTimer + 371 (CoreFoundation + 369036) [0x7fff41d8c18c] 1 mk\_timer\_arm + 10 (libsystem\_kernel.dylib + 5034) [0x7fff6ddfc3aa] 1 CFRelease + 0 (CoreFoundation + 41952) [0x7fff41d3c3e0] 1 1 \_\_CFRunLoopDoTimers + 398 (CoreFoundation + 368374) [0x7fff41d8bef6] 1 -[\_\_NSArrayM dealloc] + 45 (CoreFoundation + 99714) [0x7fff41d4a582] 1 free + 107 (libsystem\_malloc.dylib + 18596) [0x7fff6de748a4] 1 nanov2\_size + 10 (libsystem\_malloc.dylib + 62207) [0x7fff6de7f2ff] 1 9 \_\_CFRunLoopRun + 1475 (CoreFoundation + 241203) [0x7fff41d6ce33] 9 \_kernelrpc\_mach\_port\_insert\_member\_trap + 10 (libsystem\_kernel.dylib + 4554) [0x7fff6ddfc1ca] 2 1 3 \_\_CFRunLoopRun + 1612 (CoreFoundation + 241340) [0x7fff41d6cebc] 3 \_\_CFRunLoopServiceMachPort + 328 (CoreFoundation + 244046) [0x7fff41d6d94e] 3 mach\_msg\_trap + 10 (libsystem\_kernel.dylib + 4650) [0x7fff6ddfc22a] 3 \_\_CFRunLoopRun + 1431 (CoreFoundation + 241159) [0x7fff41d6ce07] 3 \_\_CFRunLoopDoObservers + 451 (CoreFoundation + 624061) [0x7fff41dca5bd] 3 **CFRUNLOOP\_IS\_CALLING\_OUT\_TO\_AN\_OBSERVER\_CALLBACK\_FUNCTION** + 23 (CoreFoundation + 624264) [0x7fff41dca688] 2 ??? (Electron Framework + 37291103) [0x107d9845f] 2 ??? (Electron Framework + 36479866) [0x107cd237a] 1 -[NSAutoreleasePool drain] + 1 (Foundation + 218883) [0x7fff43fea703] 1 1 ??? (Electron Framework + 37293095) [0x107d98c27] 1 ??? (Electron Framework + 36610965) [0x107cf2395] 1 ??? (Electron Framework + 36614448) [0x107cf3130] 1 1 \_NSGestureRecognizerUpdate + 52 (AppKit + 1607702) [0x7fff3f4d1816] 1 CFArrayGetCount + 74 (CoreFoundation + 101214) [0x7fff41d4ab5e] 1 1 \_\_CFRunLoopRun + 2802 (CoreFoundation + 242530) [0x7fff41d6d362] 1 1 \_\_CFRunLoopRun + 2289 (CoreFoundation + 242017) [0x7fff41d6d161] 1 **CFRUNLOOP\_IS\_SERVICING\_THE\_MAIN\_DISPATCH\_QUEUE** + 9 (CoreFoundation + 244279) [0x7fff41d6da37] 1 \_dispatch\_main\_queue\_callback\_4CF + 813 (libdispatch.dylib + 58699) [0x7fff6dc8554b] 1 \_dispatch\_source\_invoke + 2056 (libdispatch.dylib + 85826) [0x7fff6dc8bf42] 1 \_dispatch\_continuation\_pop + 414 (libdispatch.dylib + 24038) [0x7fff6dc7cde6] 1 \_dispatch\_client\_callout + 8 (libdispatch.dylib + 13885) [0x7fff6dc7a63d] 1 ??? (ZoomSDK + 809979) [0x110cd1bfb] 1 ??? (ZoomSDK + 810467) [0x110cd1de3] 1 ??? (ZoomSDK + 461232) [0x110c7c9b0] 1 Cmm::CSBAppProxy::DispatchIdleMessage() + 24 (cmmlib + 133528) [0x110e73998] 1 ??? (cmmlib + 134076) [0x110e73bbc] 1 ??? (zChatApp + 1011072) [0x112fb0d80] 1 1 \_\_CFRunLoopRun + 1306 (CoreFoundation + 241034) [0x7fff41d6cd8a] 1 \_\_CFRunLoopServiceMachPort + 328 (CoreFoundation + 244046) [0x7fff41d6d94e] 1 mach\_msg\_trap + 10 (libsystem\_kernel.dylib + 4650) [0x7fff6ddfc22a] 1 -[NSApplication(NSEvent) \_nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 2577 (AppKit + 104747) [0x7fff3f36292b] 1 \_DPSEventHandledByCarbon + 145 (AppKit + 149825) [0x7fff3f36d941] 1 SendEventToEventTarget + 39 (HIToolbox + 154038) [0x7fff40fe59b6] 1 SendEventToEventTargetInternal(OpaqueEventRef\*, OpaqueEventTargetRef\*, HandlerCallRec\*) + 371 (HIToolbox + 34271) [0x7fff40fc85df] 1 DispatchEventToHandlers(EventTargetRec\*, OpaqueEventRef\*, HandlerCallRec\*) + 2488 (HIToolbox + 38488) [0x7fff40fc9658] 1 ToolboxEventDispatcherHandler(OpaqueEventHandlerCallRef\*, OpaqueEventRef\*, void\*) + 1813 (HIToolbox + 153135) [0x7fff40fe562f] 1 FindWindowAndPartFromMouseEvent + 112 (HIToolbox + 365654) [0x7fff41019456] 1 FindWindow + 38 (HIToolbox + 365781) [0x7fff410194d5] 1 FindWindowOfClass + 56 (HIToolbox + 365851) [0x7fff4101951b] 1 FindWindowCommon(Point, OpaqueWindowPtr\*\*, short\*) + 46 (HIToolbox + 366050) [0x7fff410195e2] 1 MBarHit + 44 (HIToolbox + 366181) [0x7fff41019665] 1 \_MBarHit(MenuData\*, Point, unsigned char, unsigned char\*, MenuData\*\*) + 104 (HIToolbox + 366317) [0x7fff410196ed] 1 \_HIPresentationInstanceFindAtLocation + 111 (HIToolbox + 367268) [0x7fff41019aa4] 1 MenuBarInstance::ForEachMenuBarDo(void (MenuBarInstance\*) block\_pointer) + 46 (HIToolbox + 283836) [0x7fff410054bc] 1 \_\_\_HIPresentationInstanceFindAtLocation\_block\_invoke + 50 (HIToolbox + 367377) [0x7fff41019b11] 1 MenuBarInstance::ContainsPoint(CGPoint, unsigned int\*) + 159 (HIToolbox + 367557) [0x7fff41019bc5] 1 MenuBarInstance::ForEachWindowDo(unsigned char, bool (OpaqueWindowPtr\*, unsigned int) block\_pointer) + 249 (HIToolbox + 168821) [0x7fff40fe9375] 1 invocation function for block in MenuBarInstance::ForEachBoundsDo(bool (CGRect, unsigned int) block\_pointer) + 50 (HIToolbox + 367682) [0x7fff41019c42] 1 GetCurrentSpaceForDisplay + 35 (HIToolbox + 360580) [0x7fff41018084] 1 SLSManagedDisplayGetCurrentSpace + 168 (SkyLight + 1667133) [0x7fff6706903d] 1 mach\_msg\_trap + 10 (libsystem\_kernel.dylib + 4650) [0x7fff6ddfc22a] 4 thread\_start + 13 (libsystem\_pthread.dylib + 9229) [0x7fff6deba40d] 4 \_pthread\_start + 66 (libsystem\_pthread.dylib + 25161) [0x7fff6debe249] 4 \_pthread\_body + 126 (libsystem\_pthread.dylib + 13035) [0x7fff6debb2eb] 3 ssb::thread\_base\_t::thread\_routine(void\*) + 14 (util + 89902) [0x110e1ef2e] 3 poll + 10 (libsystem\_kernel.dylib + 37742) [0x7fff6de0436e] 3 \ 1 \_NSEventThread + 175 (AppKit + 140450) [0x7fff3f36b4a2] 1 CFRunLoopRunSpecific + 455 (CoreFoundation + 239134) [0x7fff41d6c61e] 1 \_\_CFRunLoopRun + 2524 (CoreFoundation + 242252) [0x7fff41d6d24c] 1 \_\_CFRunLoopDoSource1 + 527 (CoreFoundation + 340565) [0x7fff41d85255] 1 **CFRUNLOOP\_IS\_CALLING\_OUT\_TO\_A\_SOURCE1\_PERFORM\_FUNCTION** + 41 (CoreFoundation + 340727) [0x7fff41d852f7] 1 \_\_CFMachPortPerform + 246 (CoreFoundation + 340985) [0x7fff41d853f9] 1 MessageHandler(\_\_CFMachPort\*, void\*, long, void\*) + 51 (HIToolbox + 86265) [0x7fff40fd50f9] 1 PullEventsFromWindowServerOnConnection(unsigned int, unsigned char, \_\_CFMachPortBoost\*) + 45 (HIToolbox + 86370) [0x7fff40fd5162] 1 SLEventCreateNextEvent + 136 (SkyLight + 1131110) [0x7fff66fe6266] 1 SLSGetNextEventRecordInternal + 251 (SkyLight + 2486232) [0x7fff67130fd8] 1 CGSEventLogEvent + 431 (SkyLight + 1185930) [0x7fff66ff388a] 1 (anonymous namespace)::MouseEventLog::getLogString() const + 55 (SkyLight + 1193617) [0x7fff66ff5691] 1 (anonymous namespace)::EventLog::getLogString() const + 313 (SkyLight + 1188425) [0x7fff66ff4249] 1 snprintf + 156 (libsystem\_c.dylib + 268933) [0x7fff6dd52a85] 1 vsnprintf\_l + 41 (libsystem\_c.dylib + 330592) [0x7fff6dd61b60] 1 \_vsnprintf + 410 (libsystem\_c.dylib + 330499) [0x7fff6dd61b03] 1 \_\_v2printf + 475 (libsystem\_c.dylib + 438723) [0x7fff6dd7c1c3] 1 \_\_vfprintf + 5809 (libsystem\_c.dylib + 279983) [0x7fff6dd555af] 1 1 start\_wqthread + 0 (libsystem\_pthread.dylib + 9200) [0x7fff6deba3f0] 1 \ Binary Images: 0x104712000 - 0x10473afff com.leaplearner.leaplearnerplatform 2.1.36 (2.1.36) \<3788637B-0A53-3737-B3B6-C827ABF3E314\> /Applications/leaplearner.app/Contents/MacOS/leaplearner 0x105a08000 - 0x10bbbefff com.github.Electron.framework (5.0.13) \<0DB05C81-2FB6-37D5-9DEF-87AA07EBE51E\> /Applications/leaplearner.app/Contents/Frameworks/Electron Framework.framework/Versions/A/Electron Framework 0x10f598000 - 0x10f635fff SaaSbee.mcm ZoomBundleDisplayVersion (4.6.15094.0218) /Applications/leaplearner.app/Contents/Frameworks/mcm.bundle/Contents/MacOS/mcm 0x110c0c000 - 0x110dcbfff zoom.us.ZoomSDK 1.0 (1) /Applications/leaplearner.app/Contents/Frameworks/ZoomSDK.framework/Versions/A/ZoomSDK 0x110e09000 - 0x110e2dfff SaaSBee.util ZoomBundleDisplayVersion (4.6.15094.0218) \<6E4FAF4D-25C5-357D-81A8-F1B55F413300\> /Applications/leaplearner.app/Contents/Frameworks/util.framework/Versions/A/util 0x110e53000 - 0x110ea7fff SaaSBee.cmmlib ZoomBundleDisplayVersion (4.6.15094.0218) \<28D3BF55-CE19-30BC-BB0B-7B6CB6AD531D\> /Applications/leaplearner.app/Contents/Frameworks/cmmlib.framework/Versions/A/cmmlib 0x112eba000 - 0x1132bcfff SaaSBee.zChatApp ZoomBundleDisplayVersion (4.6.15094.0218) \<0C1CD72D-3B68-351A-AFF0-07ADD3EAA87E\> /Applications/leaplearner.app/Contents/Frameworks/zChatApp.bundle/Contents/MacOS/zChatApp 0x116369000 - 0x1164e8fff SaaSBee.zVideoApp ZoomBundleDisplayVersion (4.6.15094.0218) \<9860034E-39C5-33B1-9D6F-BC3E0E99BE3A\> /Applications/leaplearner.app/Contents/Frameworks/zVideoApp.bundle/Contents/MacOS/zVideoApp 0x7fff3f349000 - 0x7fff400fefff com.apple.AppKit 6.9 (1671.60.109) /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit 0x7fff40fc0000 - 0x7fff412b7fff com.apple.HIToolbox 2.1.1 (918.7) \<13F69D4C-D19F-3E09-9231-1978D783A556\> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/HIToolbox 0x7fff41d32000 - 0x7fff42177fff com.apple.CoreFoundation 6.9 (1575.22) \<51040EEE-7C5D-3433-A271-86B47B0562BF\> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation 0x7fff43fb5000 - 0x7fff44362fff com.apple.Foundation 6.9 (1575.22) /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation 0x7fff66ed2000 - 0x7fff67181fff com.apple.SkyLight 1.600.0 (340.54) \<90EB1C2E-B264-3EC4-AF7F-CDE7E7585746\> /System/Library/PrivateFrameworks/SkyLight.framework/Versions/A/SkyLight 0x7fff6dc77000 - 0x7fff6dcb0fff libdispatch.dylib (1008.270.1) \<97273678-E94C-3C8C-89F6-2E2020F4B43B\> /usr/lib/system/libdispatch.dylib 0x7fff6dcb1000 - 0x7fff6dcddfff libdyld.dylib (655.1.1) \<002418CC-AD11-3D10-865B-015591D24E6C\> /usr/lib/system/libdyld.dylib 0x7fff6dd11000 - 0x7fff6dd98fff libsystem\_c.dylib (1272.250.1) \<7EDACF78-2FA3-35B8-B051-D70475A35117\> /usr/lib/system/libsystem\_c.dylib 0x7fff6ddfb000 - 0x7fff6de23fff libsystem\_kernel.dylib (4903.271.2) /usr/lib/system/libsystem\_kernel.dylib 0x7fff6de70000 - 0x7fff6de9afff libsystem\_malloc.dylib (166.270.1) \<011F3AD0-8E6A-3A89-AE64-6E5F6840F30A\> /usr/lib/system/libsystem\_malloc.dylib 0x7fff6deae000 - 0x7fff6deb7fff libsystem\_platform.dylib (177.270.1) \<9D1FE5E4-EB7D-3B3F-A8D1-A96D9CF1348C\> /usr/lib/system/libsystem\_platform.dylib 0x7fff6deb8000 - 0x7fff6dec2fff libsystem\_pthread.dylib (330.250.2) \<2D5C08FF-484F-3D59-9132-CE1DCB3F76D7\> /usr/lib/system/libsystem\_pthread.dylib ---
**Author:** ![1223229224](https://avatars.discourse-cdn.com/v4/letter/1/cab0a1/32.png) [@1223229224](https://devforum.zoom.us/u/1223229224)\ **Post date:** [March 31, 2020, 6:47am UTC](https://devforum.zoom.us/t/fall-back-mac-create-cpthost-app-failed/10184/8 "2020-03-31T06:47:32Z")
External Modification Summary: Calls made by other processes targeting this process: task\_for\_pid: 2 thread\_create: 0 thread\_set\_state: 0 Calls made by this process: task\_for\_pid: 0 thread\_create: 0 thread\_set\_state: 0 Calls made by all processes on this machine: task\_for\_pid: 58607 thread\_create: 0 thread\_set\_state: 0 VM Region Summary: ReadOnly portion of Libraries: Total=618.0M resident=0K(0%) swapped\_out\_or\_unallocated=618.0M(100%) Writable regions: Total=1.5G written=0K(0%) resident=0K(0%) swapped\_out=0K(0%) unallocated=1.5G(100%) ``` VIRTUAL REGION ``` REGION TYPE SIZE COUNT (non-coalesced) =========== ======= ======= Accelerate framework 384K 2 Activity Tracing 256K 1 CG backing stores 18.8M 10 CG image 344K 29 CoreAnimation 374.5M 72 CoreGraphics 8K 1 CoreImage 28K 3 CoreUI image data 1212K 15 CoreUI image file 540K 7 Foundation 4K 1 IOKit 7940K 1 Image IO 440K 43 Kernel Alloc Once 12K 2 MALLOC 271.4M 90 MALLOC guard page 32K 6 MALLOC\_NANO (reserved) 384.0M 1 reserved VM address space (unallocated) Memory Tag 242 12K 1 Memory Tag 255 150.1M 59 PROTECTED\_MEMORY 4K 1 STACK GUARD 56.2M 62 Stack 293.0M 62 VM\_ALLOCATE 185.0M 54 \_\_DATA 46.3M 368 \_\_DATA\_CONST 120K 2 \_\_FONT\_DATA 4K 1 \_\_LINKEDIT 230.0M 35 \_\_TEXT 388.1M 352 \_\_UNICODE 564K 1 mapped file 167.0M 120 shared memory 668K 11 =========== ======= ======= TOTAL 2.5G 1413 TOTAL, minus reserved VM space 2.1G 1413 ---
**Author:** ![carson.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/carson.zoom/32/785_2.png) [@carson.zoom](https://devforum.zoom.us/u/carson.zoom)\ **Post date:** [April 1, 2020, 1:39am UTC](https://devforum.zoom.us/t/fall-back-mac-create-cpthost-app-failed/10184/9 "2020-04-01T01:39:21Z")
Hi [1223229224](https://devforum.zoom.us/t/fall-back-mac-create-cpthost-app-failed/10184/8), Thanks for the log info. Based on the log, it seems like everything is working well in the SDK. Do you have any other info that could reveal the issue you are mentioning? Could you verify and see if there is any error in the signing process? Thanks! ---
**Author:** ![1223229224](https://avatars.discourse-cdn.com/v4/letter/1/cab0a1/32.png) [@1223229224](https://devforum.zoom.us/u/1223229224)\ **Post date:** [April 1, 2020, 1:50am UTC](https://devforum.zoom.us/t/fall-back-mac-create-cpthost-app-failed/10184/10 "2020-04-01T01:50:14Z")
The signing process was as smooth as usual and no errors were reported. With the same code, I deleted the local signing certificate and packaged the app, and I was prompted to allow the camera microphone to be called. After confirmation, it could be called, but after signing the app, it would get stuck in the connection meeting, and the app crashed. I tried to copy the sdk file in the successfully run demo to the Contents already installed in the application, and got the same crash result, so I think it should be nothing to do with the signature. And I checked the permissions of the app to call the microphone and camera, all of them are set to allow. … I don’t know where else to start solving this problem ---
**Author:** ![bella.tu](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/bella.tu/32/1227_2.png) [@bella.tu](https://devforum.zoom.us/u/bella.tu)\ **Post date:** [April 1, 2020, 2:41am UTC](https://devforum.zoom.us/t/fall-back-mac-create-cpthost-app-failed/10184/11 "2020-04-01T02:41:51Z")
Hi 1.The APP works without signature, so the electron SDK is fine. 2.A signed APP should not have any file copy or other operations, otherwise it may cause package damage, some functions can not be used。 3.Please make sure had re-sign all sdk file! 4.Whether the Hardened Runtime is turned on and the runtime.entitlements is used when signing? Microphone and canera permissions also need to add to the runtime.entitlements. ![屏幕快照 2020-04-01 上午10.25.15](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/2X/7/70ab24cfa1165688a4b0e6bb23a8d53e64d49617.png) ---
**Author:** ![1223229224](https://avatars.discourse-cdn.com/v4/letter/1/cab0a1/32.png) [@1223229224](https://devforum.zoom.us/u/1223229224)\ **Post date:** [April 1, 2020, 6:53am UTC](https://devforum.zoom.us/t/fall-back-mac-create-cpthost-app-failed/10184/12 "2020-04-01T06:53:47Z")
Fourth, you’re right, it works for me! thank you very much ---
**Author:** ![carson.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/carson.zoom/32/785_2.png) [@carson.zoom](https://devforum.zoom.us/u/carson.zoom)\ **Post date:** [April 2, 2020, 5:18am UTC](https://devforum.zoom.us/t/fall-back-mac-create-cpthost-app-failed/10184/13 "2020-04-02T05:18:26Z")
Glad to hear that it is working now. Happy Zooming! 🙂