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POLink Error about OpenCV in Xcode
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copied!<p>I am using XCode4 and OpenCV 2.3. I have compiled a copy of OpenCV. Here is the .a's info:</p> <pre><code>libopencv_core.a: Mach-O universal binary with 3 architectures libopencv_core.a (for architecture armv7): current ar archive random library libopencv_core.a (for architecture armv6): current ar archive random library libopencv_core.a (for architecture i386): current ar archive random library </code></pre> <p>I drag it to the Frameworks floder, and set the right path of library search. But when I compiled, it occurred such errors:</p> <p>It seems that the STL which is used in OpenCV lib was not linked in the .a file. How to fix it?</p> <p>Thanks, bow.</p> <p>Undefined symbols for architecture armv7:</p> <pre><code>"___cxa_begin_catch", referenced from: icvReadSeq(CvFileStorage*, CvFileNode*) in libopencv_core.a(persistence.o) "typeinfo for std::exception", referenced from: typeinfo for cv::Exceptionin libopencv_core.a(alloc.o) "operator delete(void*)", referenced from: cv::Exception::~Exception()in libopencv_core.a(alloc.o) "_gzputs", referenced from: icvPuts(CvFileStorage*, char const*)in libopencv_core.a(persistence.o) "std::basic_string<char, std::char_traits<char>, std::allocator<char> >::_Rep::_M_destroy(std::allocator<char> const&)", referenced from: cv::OutOfMemoryError(unsigned long)in libopencv_core.a(alloc.o) cv::Exception::~Exception()in libopencv_core.a(alloc.o) cv::Exception::~Exception()in libopencv_core.a(alloc.o) _cvCreateMatHeader in libopencv_core.a(array.o) _cvGetImageCOI in libopencv_core.a(array.o) _cvSetImageCOI in libopencv_core.a(array.o) _cvGetSize in libopencv_core.a(array.o) ... "std::basic_string<char, std::char_traits<char>, std::allocator<char> >::assign(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)", referenced from: cv::OutOfMemoryError(unsigned long)in libopencv_core.a(alloc.o) cv::Exception::Exception(int, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int)in libopencv_core.a(array.o) _cvRegisterModule in libopencv_core.a(system.o) "___cxa_throw", referenced from: cv::error(cv::Exception const&)in libopencv_core.a(system.o) "___cxa_end_catch", referenced from: icvReadSeq(CvFileStorage*, CvFileNode*) in libopencv_core.a(persistence.o) "_cvCvtColor", referenced from: -[cviosViewController CreateIplImageFromUIImage:] in cviosViewController.o "vtable for std::exception", referenced from: cv::Exception::Exception(int, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int)in libopencv_core.a(array.o) cv::error(cv::Exception const&)in libopencv_core.a(system.o) "operator new[](unsigned long)", referenced from: cv::mixChannels(cv::Mat const*, unsigned long, cv::Mat*, unsigned long, int const*, unsigned long)in libopencv_core.a(convert.o) "std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)", referenced from: cv::OutOfMemoryError(unsigned long)in libopencv_core.a(alloc.o) cv::Exception::Exception(int, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int)in libopencv_core.a(array.o) cv::error(cv::Exception const&)in libopencv_core.a(system.o) _cvRegisterModule in libopencv_core.a(system.o) "vtable for __cxxabiv1::__si_class_type_info", referenced from: typeinfo for cv::Exceptionin libopencv_core.a(alloc.o) "std::terminate()", referenced from: cv::error(cv::Exception const&)in libopencv_core.a(system.o) "___cxa_allocate_exception", referenced from: cv::error(cv::Exception const&)in libopencv_core.a(system.o) "___gxx_personality_sj0", referenced from: cv::OutOfMemoryError(unsigned long)in libopencv_core.a(alloc.o) _cvCreateMatHeader in libopencv_core.a(array.o) _cvGetImageCOI in libopencv_core.a(array.o) _cvSetImageCOI in libopencv_core.a(array.o) _cvGetSize in libopencv_core.a(array.o) _cvGetDims in libopencv_core.a(array.o) _cvGetElemType in libopencv_core.a(array.o) ... "std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std::allocator<char> const&)", referenced from: cv::OutOfMemoryError(unsigned long)in libopencv_core.a(alloc.o) _cvCreateMatHeader in libopencv_core.a(array.o) _cvGetImageCOI in libopencv_core.a(array.o) _cvSetImageCOI in libopencv_core.a(array.o) _cvGetSize in libopencv_core.a(array.o) _cvGetDims in libopencv_core.a(array.o) _cvGetElemType in libopencv_core.a(array.o) ... "operator delete[](void*)", referenced from: cv::mixChannels(cv::Mat const*, unsigned long, cv::Mat*, unsigned long, int const*, unsigned long)in libopencv_core.a(convert.o) "std::basic_string<char, std::char_traits<char>, std::allocator<char> >::_Rep::_S_empty_rep_storage", referenced from: cv::OutOfMemoryError(unsigned long)in libopencv_core.a(alloc.o) cv::Exception::~Exception()in libopencv_core.a(alloc.o) cv::Exception::~Exception()in libopencv_core.a(alloc.o) _cvCreateMatHeader in libopencv_core.a(array.o) _cvGetImageCOI in libopencv_core.a(array.o) _cvSetImageCOI in libopencv_core.a(array.o) _cvGetSize in libopencv_core.a(array.o) ... "std::exception::~exception()", referenced from: cv::OutOfMemoryError(unsigned long)in libopencv_core.a(alloc.o) cv::Exception::~Exception()in libopencv_core.a(alloc.o) cv::Exception::~Exception()in libopencv_core.a(alloc.o) cv::Exception::Exception(int, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int)in libopencv_core.a(array.o) cv::error(cv::Exception const&)in libopencv_core.a(system.o) _cvRegisterModule in libopencv_core.a(system.o) </code></pre> <p>ld: symbol(s) not found for architecture armv7 collect2: ld returned 1 exit status</p> <p>BTW: When I set the file name to .mm, the linker reports Internal Complier error. Bus error.</p>

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