Problem with "undefined symbols for architechture x86_64"

[DongwonU]

Hi there,
I am trying to run the convnetRegression one and everything was set up according to the readme file. However, it comes up with "Apple Mach-O Linker Error, which is sort of same problem when I tried the ofxMSATensorflow made by Memo. Is that a problem related to my build setting of anything else? I am new in the coding world, Is there anyone who has the same problem?
I am running with OF:v0.10.1, Xcode:v10.0, and following is the errors showed.
Thanks inadvace!
Sincerely,

Undefined symbols for architecture x86_64:
"typeinfo for GRT::GestureRecognitionPipeline", referenced from:
typeinfo for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::GestureRecognitionPipeline::train_(GRT::ClassificationData&)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::MLBase::train(GRT::RegressionData)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::GestureRecognitionPipeline::train_(GRT::RegressionData&)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::MLBase::train(GRT::RegressionData, GRT::RegressionData)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::GestureRecognitionPipeline::train_(GRT::RegressionData&, GRT::RegressionData&)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::MLBase::train(GRT::MatrixFloat)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::GestureRecognitionPipeline::train_(GRT::ClassificationDataStream&)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::MLBase::train_(GRT::MatrixFloat&)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::GestureRecognitionPipeline::predict_(GRT::MatrixFloat&)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::MLBase::map(GRT::VectorFloat)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::MLBase::train(GRT::TimeSeriesClassificationData)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::GestureRecognitionPipeline::map_(GRT::VectorFloat&)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::GestureRecognitionPipeline::reset()", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::MLBase::print() const", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::MLBase::train(GRT::ClassificationData)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::GestureRecognitionPipeline::save(std::__1::basic_string<char, std::__1::char_traits, std::__1::allocator > const&) const", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::MLBase::save(std::__1::basic_fstream<char, std::__1::char_traits >&) const", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::MLBase::saveModelToFile(std::__1::basic_string<char, std::__1::char_traits, std::__1::allocator > const&) const", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::MLBase::loadModelFromFile(std::__1::basic_string<char, std::__1::char_traits, std::__1::allocator > const&)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::MLBase::predict(GRT::VectorFloat)", referenced from:
ofApp::update() in ofApp.o
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::MLBase::loadModelFromFile(std::__1::basic_fstream<char, std::__1::char_traits >&)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::GestureRecognitionPipeline::train(GRT::TimeSeriesClassificationData const&, unsigned int, bool)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::GestureRecognitionPipeline::load(std::__1::basic_string<char, std::__1::char_traits, std::1::allocator > const&)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::RegressionData::~RegressionData()", referenced from:
ofApp::ofApp() in main.o
GestureRecognitionPipelineThreaded::threadedFunction() in ofApp.o
ofApp::~ofApp() in ofApp.o
"GRT::MLBase::setRandomiseTrainingOrder(bool)", referenced from:
ofApp::setupRegressor() in ofApp.o
"GRT::GestureRecognitionPipeline::train(GRT::TimeSeriesClassificationData&, unsigned int, bool)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::GestureRecognitionPipeline::train(GRT::ClassificationData&, unsigned int, bool)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::GestureRecognitionPipeline::test(GRT::ClassificationData const&)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::GestureRecognitionPipeline::test(GRT::TimeSeriesClassificationData const&)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::GestureRecognitionPipeline::test(GRT::ClassificationDataStream const&)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::RegressionData::RegressionData(unsigned int, unsigned int, std::__1::basic_string<char, std::__1::char_traits, std::__1::allocator >, std::__1::basic_string<char, std::__1::char_traits, std::1::allocator >)", referenced from:
ofApp::ofApp() in main.o
"GRT::MultidimensionalRegression::~MultidimensionalRegression()", referenced from:
ofApp::setupRegressor() in ofApp.o
"GRT::GestureRecognitionPipeline::train(GRT::RegressionData&, unsigned int)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::MLBase::train(GRT::ClassificationDataStream)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::GestureRecognitionPipeline::clearModel()", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::VectorFloat::VectorFloat(unsigned long)", referenced from:
ofApp::update() in ofApp.o
"GRT::GestureRecognitionPipeline::predict(GRT::VectorFloat&)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::RegressionData::addSample(GRT::VectorFloat const&, GRT::VectorFloat const&)", referenced from:
ofApp::update() in ofApp.o
"GRT::VectorFloat::VectorFloat(GRT::VectorFloat const&)", referenced from:
ofApp::update() in ofApp.o
"GRT::MLBase::saveModelToFile(std::__1::basic_fstream<char, std::_1::char_traits >&) const", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::MLP::MLP()", referenced from:
ofApp::setupRegressor() in ofApp.o
"GRT::GestureRecognitionPipeline::train(GRT::TimeSeriesClassificationData&)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::MLBase::setMinChange(double)", referenced from:
ofApp::setupRegressor() in ofApp.o
"GRT::GestureRecognitionPipeline::getIsInitialized() const", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::MLBase::load(std::__1::basic_fstream<char, std::_1::char_traits >&)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::MultidimensionalRegression::MultidimensionalRegression(GRT::Regressifier const&, bool)", referenced from:
ofApp::setupRegressor() in ofApp.o
"GRT::MLP::setNumRandomTrainingIterations(unsigned int)", referenced from:
ofApp::setupRegressor() in ofApp.o
"GRT::MLBase::predict(GRT::MatrixFloat)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::MLBase::setUseValidationSet(bool)", referenced from:
ofApp::setupRegressor() in ofApp.o
"GRT::GestureRecognitionPipeline::operator<<(GRT::Regressifier const&)", referenced from:
ofApp::setupRegressor() in ofApp.o
"GRT::MLBase::setLearningRate(double)", referenced from:
ofApp::setupRegressor() in ofApp.o
"GRT::GestureRecognitionPipeline::test(GRT::RegressionData const&)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::GestureRecognitionPipeline::GestureRecognitionPipeline()", referenced from:
GestureRecognitionPipelineThreaded::GestureRecognitionPipelineThreaded() in main.o
"GRT::MLBase::setValidationSetSize(unsigned int)", referenced from:
ofApp::setupRegressor() in ofApp.o
"GRT::MLP::init(unsigned int, unsigned int, unsigned int, GRT::Neuron::Type, GRT::Neuron::Type, GRT::Neuron::Type)", referenced from:
ofApp::setupRegressor() in ofApp.o
"GRT::GestureRecognitionPipeline::getNumTrainingSamples() const", referenced from:
ofApp::addSlider() in ofApp.o
"GRT::GestureRecognitionPipeline::train(GRT::UnlabelledData&)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::MLBase::setMaxNumEpochs(unsigned int)", referenced from:
ofApp::setupRegressor() in ofApp.o
"GRT::RegressionData::setInputAndTargetDimensions(unsigned int, unsigned int)", referenced from:
ofApp::addSlider() in ofApp.o
"GRT::RegressionData::clear()", referenced from:
ofApp::clear() in ofApp.o
"GRT::RegressionData::save(std::__1::basic_string<char, std::__1::char_traits, std::__1::allocator > const&) const", referenced from:
ofApp::save() in ofApp.o
"GRT::RegressionData::load(std::__1::basic_string<char, std::__1::char_traits, std::__1::allocator > const&)", referenced from:
ofApp::load() in ofApp.o
"GRT::GestureRecognitionPipeline::clear()", referenced from:
ofApp::clear() in ofApp.o
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::GestureRecognitionPipeline::train(GRT::ClassificationData const&, unsigned int, bool)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::GestureRecognitionPipeline::getModelAsString() const", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::MLBase::enableScaling(bool)", referenced from:
ofApp::setupRegressor() in ofApp.o
"GRT::GestureRecognitionPipeline::~GestureRecognitionPipeline()", referenced from:
GestureRecognitionPipelineThreaded::~GestureRecognitionPipelineThreaded() in main.o
"GRT::GestureRecognitionPipeline::train(GRT::RegressionData const&, unsigned int)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::GestureRecognitionPipeline::getRegressionData() const", referenced from:
ofApp::update() in ofApp.o
"GRT::MLBase::train(GRT::UnlabelledData)", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::VectorFloat::VectorFloat()", referenced from:
ofApp::ofApp() in main.o
"GRT::VectorFloat::~VectorFloat()", referenced from:
ofApp::ofApp() in main.o
ofApp::update() in ofApp.o
ofApp::~ofApp() in ofApp.o
"GRT::MLBase::getModel(std::__1::basic_ostream<char, std::__1::char_traits >&) const", referenced from:
vtable for GestureRecognitionPipelineThreaded in ofApp.o
"GRT::RegressionData::RegressionData(GRT::RegressionData const&)", referenced from:
GestureRecognitionPipelineThreaded::threadedFunction() in ofApp.o
"GRT::MLP::~MLP()", referenced from:
ofApp::setupRegressor() in ofApp.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)