Error: global.nativeTraceBeginSection is not a function

user_8902174 0
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I didnt change anything but suddenly I got this error in my xproject and the app got stuck and thing the when I do simulator through my Xcode is working but not with physical device. the full log is here:

        'Failed to print error: ', 'global.nativeTraceBeginSection is not a function. (In \'global.nativeTraceBeginSection(TRACE_TAG_REACT_APPS, profileName, args)\', \'global.nativeTraceBeginSection\' is undefined)'
       WARNING: Logging before InitGoogleLogging() is written to STDERR
   E0910 19:37:09.077337 1871998976 JSCHelpers.cpp:137] Got JS Exception: Exception calling object as function: global.nativeTraceEndSection is not a function. (In 'global.nativeTraceEndSection(TRACE_TAG_REACT_APPS)', 'global.nativeTraceEndSection' is undefined) (<unknown file>:2303)
  E0910 19:37:09.077525 1871998976 JSCHelpers.cpp:143] Got JS Stack: endEvent@http://192.168.1.27.xip.io:8081/index.bundle?platform=ios&dev=true&minify=false:2303:35
  __callFunction@http://192.168.1.27.xip.io:8081/index.bundle?platform=ios&dev=true&minify=false:2098:24
  http://192.168.1.27.xip.io:8081/index.bundle?platform=ios&dev=true&minify=false:1927:29
__guard@http://192.168.1.27.xip.io:8081/index.bundle?platform=ios&dev=true&minify=false:2068:11
 callFunctionReturnFlushedQueue@http://192.168.1.27.xip.io:8081/index.bundle?platform=ios&dev=true&minify=false:1926:19
 callFunctionReturnFlushedQueue@[native code]
2018-09-10 19:37:09.079 [fatal][tid:com.facebook.react.JavaScript] Error calling Systrace.setEnabled

 Unhandled JS Exception: Exception calling object as function: global.nativeTraceEndSection is not a function. (In 'global.nativeTraceEndSection(TRACE_TAG_REACT_APPS)', 'global.nativeTraceEndSection' is undefined) (<unknown file>:2303)
2018-09-10 19:37:09.082 [error][tid:com.facebook.react.JavaScript] global.nativeTraceBeginSection is not a function. (In 'global.nativeTraceBeginSection(TRACE_TAG_REACT_APPS, profileName, args)', 'global.nativeTraceBeginSection' is undefined)
2018-09-10 19:37:09.083 [info][tid:com.facebook.react.JavaScript] 'Failed to print error: ', 'Can\'t find variable: regeneratorRuntime'
E0910 19:37:09.086755 1871998976 JSCHelpers.cpp:137] Got JS Exception: Exception calling object as function: global.nativeTraceBeginSection is not a function. (In 'global.nativeTraceBeginSection(TRACE_TAG_REACT_APPS, profileName, args)', 'global.nativeTraceBeginSection' is undefined) (<unknown file>:2298)
E0910 19:37:09.086828 1871998976 JSCHelpers.cpp:143] Got JS Stack: beginEvent@http://192.168.1.27.xip.io:8081/index.bundle?platform=ios&dev=true&minify=false:2298:37
__invokeCallback@http://192.168.1.27.xip.io:8081/index.bundle?platform=ios&dev=true&minify=false:2125:28
http://192.168.1.27.xip.io:8081/index.bundle?platform=ios&dev=true&minify=false:1950:32
__guard@http://192.168.1.27.xip.io:8081/index.bundle?platform=ios&dev=true&minify=false:2068:11
invokeCallbackAndReturnFlushedQueue@http://192.168.1.27.xip.io:8081/index.bundle?platform=ios&dev=true&minify=false:1949:19
invokeCallbackAndReturnFlushedQueue@[native code]
(lldb)

I have been trying to find solution, didn't succeed with any of them. this error shows on my Xcode logged and not on my screen of the phone

Thank you so much for the help!!

react-native xcode ios
2 Answers

I had the same issue because I unintentionally enabled Start Systrace and since it is a known react native issue... I was getting the error.

What worked for me was just disabling Start Systrace and restarting the project. How I do that?

Command ⌘ + D

img

Press Disable Start Systrace, that's it!

user_76021100
user_14453660
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