CODEWITHSUNDEEP
iosxcodecocoapods
xemacobra
xemacobra

Reputation: 1954

Using custom cocoapod gives compile errors (Undefined symbols for architecture armv7:)

I built my own pod for my own internal usage. The pod spec lint worked fine but when I tried to actually use it, it gave me the following compile errors:

Undefined symbols for architecture armv7:
  "___gxx_personality_sj0", referenced from:
      _GetConvertedData in libPods.a(ExtAudioFileConvert.o)
  "vtable for __cxxabiv1::__class_type_info", referenced from:
      typeinfo for CAXException in libPods.a(ExtAudioFileConvert.o)
  NOTE: a missing vtable usually means the first non-inline virtual member function has no definition.
  "std::__throw_bad_alloc()", referenced from:
      std::_Vector_base<AudioBufferList*, std::allocator<AudioBufferList*> >::_M_allocate(unsigned long) in libPods.a(ExtAudioFileConvert.o)
  "CAStreamBasicDescription::CAStreamBasicDescription()", referenced from:
      _GetConvertedData in libPods.a(ExtAudioFileConvert.o)
  "___cxa_allocate_exception", referenced from:
      _GetConvertedData in libPods.a(ExtAudioFileConvert.o)
  "___cxa_throw", referenced from:
      _GetConvertedData in libPods.a(ExtAudioFileConvert.o)
  "operator new[](unsigned long)", referenced from:
      _GetConvertedData in libPods.a(ExtAudioFileConvert.o)
  "___cxa_begin_catch", referenced from:
      _GetConvertedData in libPods.a(ExtAudioFileConvert.o)
  "operator new(unsigned long)", referenced from:
      _GetConvertedData in libPods.a(ExtAudioFileConvert.o)
      std::_Vector_base<AudioBufferList*, std::allocator<AudioBufferList*> >::_M_allocate(unsigned long) in libPods.a(ExtAudioFileConvert.o)
  "std::__throw_length_error(char const*)", referenced from:
      std::vector<AudioBufferList*, std::allocator<AudioBufferList*> >::_M_insert_aux(__gnu_cxx::__normal_iterator<AudioBufferList**, std::vector<AudioBufferList*, std::allocator<AudioBufferList*> > >, AudioBufferList* const&) in libPods.a(ExtAudioFileConvert.o)
  "___cxa_free_exception", referenced from:
      _GetConvertedData in libPods.a(ExtAudioFileConvert.o)
  "_OBJC_CLASS_$_MPMusicPlayerController", referenced from:
      objc-class-ref in libPods.a(AudioManager.o)
  "___cxa_end_catch", referenced from:
      _GetConvertedData in libPods.a(ExtAudioFileConvert.o)
  "std::terminate()", referenced from:
      _GetConvertedData in libPods.a(ExtAudioFileConvert.o)
  "operator delete(void*)", referenced from:
      _GetConvertedData in libPods.a(ExtAudioFileConvert.o)
      std::vector<AudioBufferList*, std::allocator<AudioBufferList*> >::_M_insert_aux(__gnu_cxx::__normal_iterator<AudioBufferList**, std::vector<AudioBufferList*, std::allocator<AudioBufferList*> > >, AudioBufferList* const&) in libPods.a(ExtAudioFileConvert.o)
ld: symbol(s) not found for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)

I suspect the frameworks are not set properly in the podspec as this is my first pod to write and I probably have a few mistakes in there.

Thanks in advance.

Upvotes: 2

Views: 2949

Answers (1)

xemacobra
xemacobra

Reputation: 1954

Officially answering the question I posted. I needed to do the following to fix it:

  • Link the C++ standard library: (Thanks to @H2CO3)
    • add s.library = 'stdc++' to the podspec
  • Link MediaPlayer framework: (Thanks to @H2CO3)
    • add s.frameworks = 'MediaPlayer' to the podspec
  • Issue with CAStreamBasicDescription was fixed by following the answer of: Trouble linking Tim Bolstad's Core Audio Example

Upvotes: 2

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