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POUndefined symbols while including Zxing to Xcode 4.3 + Obj-C
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copied!<p>I am facing some problem while including ZXingWidget to my previous iOS project. </p> <p>It is a project which I started earlier using XCode4.3+ARC for iOS. For this project I need to include ZXing to scan. </p> <p>I had followed the README provided.</p> <ol> <li>Copy zxing into project root, add ZXingWidget.xcodeproj project</li> <li>Adding link libZXingWidget.a in build phases </li> <li>Added ZXingWidget to target dependencies</li> <li>Header Search Paths - recursive $(SRCROOT)/zxing-read-only/iphone/ZXingWidget/Classes</li> <li>Header Search Paths - non-recursive $(SRCROOT)/zxing-read-only/cpp/core/src</li> <li>Import all the required iOS frameworks.</li> </ol> <p>Things to note:</p> <ul> <li>ZXing compiled and run properly on iphone simulator</li> <li>I am getting about 66 errors about undefined symbols. (example below)</li> <li>Zxing code is obtained from SVN (I also tried the zip download, same but 64 errors)</li> </ul> <p>But I could not import any file directly from my code (#import not working).</p> <p>I also tried this <a href="https://stackoverflow.com/questions/8893983/xcode4-zxing-undefined-symbols-for-architecture-i386?rq=1">solution</a> with no luck.</p> <p>Any other possibilities that I am missing?</p> <p>Any help is appreciated!</p> <p>Some error output I am getting now.</p> <pre><code>Undefined symbols for architecture i386: "std::ios_base::Init::Init()", referenced from: ___cxx_global_var_init in libZXingWidget.a(Binarizer.o) ___cxx_global_var_init in libZXingWidget.a(BinaryBitmap.o) ___cxx_global_var_init in libZXingWidget.a(Array.o) ___cxx_global_var_init in libZXingWidget.a(BitArray.o) ___cxx_global_var_init in libZXingWidget.a(BitMatrix.o) ___cxx_global_var_init in libZXingWidget.a(BitSource.o) ___cxx_global_var_init in libZXingWidget.a(Counted.o) ... "std::terminate()", referenced from: zxing::Binarizer::Binarizer(zxing::Ref<zxing::LuminanceSource>) in libZXingWidget.a(Binarizer.o) zxing::Binarizer::~Binarizer() in libZXingWidget.a(Binarizer.o) zxing::BinaryBitmap::BinaryBitmap(zxing::Ref<zxing::Binarizer>) in libZXingWidget.a(BinaryBitmap.o) zxing::BinaryBitmap::~BinaryBitmap() in libZXingWidget.a(BinaryBitmap.o) zxing::BinaryBitmap::getBlackRow(int, zxing::Ref<zxing::BitArray>) in libZXingWidget.a(BinaryBitmap.o) zxing::BinaryBitmap::getWidth() const in libZXingWidget.a(BinaryBitmap.o) zxing::BinaryBitmap::getHeight() const in libZXingWidget.a(BinaryBitmap.o) ... "operator delete(void*)", referenced from: zxing::Binarizer::~Binarizer() in libZXingWidget.a(Binarizer.o) zxing::Counted::~Counted() in libZXingWidget.a(Binarizer.o) zxing::BinaryBitmap::~BinaryBitmap() in libZXingWidget.a(BinaryBitmap.o) zxing::BinaryBitmap::crop(int, int, int, int) in libZXingWidget.a(BinaryBitmap.o) zxing::BinaryBitmap::rotateCounterClockwise() in libZXingWidget.a(BinaryBitmap.o) zxing::Counted::~Counted() in libZXingWidget.a(BinaryBitmap.o) zxing::BitArray::~BitArray() in libZXingWidget.a(BitArray.o) ... "___cxa_allocate_exception", referenced from: zxing::Counted::release() in libZXingWidget.a(Binarizer.o) zxing::Counted::release() in libZXingWidget.a(BinaryBitmap.o) zxing::BitArray::setRange(int, int) in libZXingWidget.a(BitArray.o) zxing::BitArray::isRange(unsigned long, unsigned long, bool) in libZXingWidget.a(BitArray.o) zxing::BitMatrix::setRegion(unsigned long, unsigned long, unsigned long, unsigned long) in libZXingWidget.a(BitMatrix.o) zxing::Counted::release() in libZXingWidget.a(BitMatrix.o) zxing::BitSource::readBits(int) in libZXingWidget.a(BitSource.o) ... </code></pre>

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