Hi,
In My Project i need bar-code scanning. so i use zxing library but i m heaving some linking error and its getting me crazy.
error is
Undefined symbols:
"zxing::BinaryBitmap::BinaryBitmap(zxing::Ref<zxing::Binarizer>)", referenced from:
-[Decoder decode:] in Decoder.o
"zxing::LuminanceSource::LuminanceSource()", referenced from:
GrayBytesMonochromeBitmapSource::GrayBytesMonochromeBitmapSource(unsigned char const*, int, int, int)in GrayBytesMonochromeBitmapSource.o
"zxing::qrcode::QRCodeReader::decode(zxing::Ref<zxing::BinaryBitmap>)", referenced from:
-[Decoder decode:] in Decoder.o
"zxing::LuminanceSource::~LuminanceSource()", referenced from:
GrayBytesMonochromeBitmapSource::~GrayBytesMonochromeBitmapSource()in GrayBytesMonochromeBitmapSource.o
GrayBytesMonochromeBitmapSource::~GrayBytesMonochromeBitmapSource()in GrayBytesMonochromeBitmapSource.o
"zxing::ReaderException::~ReaderException()", referenced from:
-[Decoder decode:] in Decoder.o
-[Decoder decode:] in Decoder.o
"zxing::String::getText()", referenced from:
-[Decoder decode:] in Decoder.o
"typeinfo for zxing::LuminanceSource", referenced from:
typeinfo for GrayBytesMonochromeBitmapSourcein GrayBytesMonochromeBitmapSource.o
"vtable for zxing::IllegalArgumentException", referenced from:
__ZTVN5zxing24IllegalArgumentExceptionE$non_lazy_ptr in Decoder.o
"typeinfo for zxing::ReaderException", referenced from:
GCC_except_table1 in Decoder.o
"vtable for zxing::Exception", referenced from:
__ZTVN5zxing9ExceptionE$non_lazy_ptr in Decoder.o
"zxing::LuminanceSource::copyMatrix()", referenced from:
vtable for GrayBytesMonochromeBitmapSourcein GrayBytesMonochromeBitmapSource.o
"zxing::Result::getText()", referenced from:
-[Decoder decode:] in Decoder.o
"zxing::GlobalHistogramBinarizer::GlobalHistogramBinarizer(zxing::Ref<zxing::LuminanceSource>)", referenced from:
-[Decoder decode:] in Decoder.o
"zxing::IllegalArgumentException::~IllegalArgumentException()", referenced from:
-[Decoder decode:] in Decoder.o
-[Decoder decode:] in Decoder.o
"zxing::Result::getResultPoints()", referenced from:
-[Decoder decode:] in Decoder.o
"typeinfo for zxing::IllegalArgumentException", referenced from:
GCC_except_table1 in Decoder.o
"zxing::Exception::what() const", referenced from:
-[Decoder decode:] in Decoder.o
-[Decoder decode:] in Decoder.o
"vtable for zxing::ReaderException", referenced from:
__ZTVN5zxing15ReaderExceptionE$non_lazy_ptr in Decoder.o
"zxing::qrcode::QRCodeReader::QRCodeReader()", referenced from:
-[Decoder decode:] in Decoder.o
"zxing::qrcode::QRCodeReader::~QRCodeReader()", referenced from:
-[Decoder decode:] in Decoder.o
-[Decoder decode:] in Decoder.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
"zxing::BinaryBitmap::BinaryBitmap(zxing::Ref<zxing::Binarizer>)", referenced from:
-[Decoder decode:] in Decoder.o
"zxing::LuminanceSource::LuminanceSource()", referenced from:
GrayBytesMonochromeBitmapSource::GrayBytesMonochromeBitmapSource(unsigned char const*, int, int, int)in GrayBytesMonochromeBitmapSource.o
"zxing::qrcode::QRCodeReader::decode(zxing::Ref<zxing::BinaryBitmap>)", referenced from:
-[Decoder decode:] in Decoder.o
"zxing::LuminanceSource::~LuminanceSource()", referenced from:
GrayBytesMonochromeBitmapSource::~GrayBytesMonochromeBitmapSource()in GrayBytesMonochromeBitmapSource.o
GrayBytesMonochromeBitmapSource::~GrayBytesMonochromeBitmapSource()in GrayBytesMonochromeBitmapSource.o
"zxing::ReaderException::~ReaderException()", referenced from:
-[Decoder decode:] in Decoder.o
-[Decoder decode:] in Decoder.o
"zxing::String::getText()", referenced from:
-[Decoder decode:] in Decoder.o
"typeinfo for zxing::LuminanceSource", referenced from:
typeinfo for GrayBytesMonochromeBitmapSourcein GrayBytesMonochromeBitmapSource.o
"vtable for zxing::IllegalArgumentException", referenced from:
__ZTVN5zxing24IllegalArgumentExceptionE$non_lazy_ptr in Decoder.o
"typeinfo for zxing::ReaderException", referenced from:
GCC_except_table1 in Decoder.o
"vtable for zxing::Exception", referenced from:
__ZTVN5zxing9ExceptionE$non_lazy_ptr in Decoder.o
"zxing::LuminanceSource::copyMatrix()", referenced from:
vtable for GrayBytesMonochromeBitmapSourcein GrayBytesMonochromeBitmapSource.o
"zxing::Result::getText()", referenced from:
-[Decoder decode:] in Decoder.o
"zxing::GlobalHistogramBinarizer::GlobalHistogramBinarizer(zxing::Ref<zxing::LuminanceSource>)", referenced from:
-[Decoder decode:] in Decoder.o
"zxing::IllegalArgumentException::~IllegalArgumentException()", referenced from:
-[Decoder decode:] in Decoder.o
-[Decoder decode:] in Decoder.o
"zxing::Result::getResultPoints()", referenced from:
-[Decoder decode:] in Decoder.o
"typeinfo for zxing::IllegalArgumentException", referenced from:
GCC_except_table1 in Decoder.o
"zxing::Exception::what() const", referenced from:
-[Decoder decode:] in Decoder.o
-[Decoder decode:] in Decoder.o
"vtable for zxing::ReaderException", referenced from:
__ZTVN5zxing15ReaderExceptionE$non_lazy_ptr in Decoder.o
"zxing::qrcode::QRCodeReader::QRCodeReader()", referenced from:
-[Decoder decode:] in Decoder.o
"zxing::qrcode::QRCodeReader::~QRCodeReader()", referenced from:
-[Decoder decode:] in Decoder.o
-[Decoder decode:] in Decoder.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
i m trying to resolve this for last two day. i think i m missing some library or some file. can any one point me out what i m doing wrong.
Usman