iOS应用程序中Tesseract集成的错误 [英] Errors in Tesseract integration in iOS app
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问题描述
我在iOS应用中集成Tesseract SDK时遇到了一些错误。
我遵循的程序 -
I am getting some errors while integrating Tesseract SDK in my iOS app. The procedure I have followed -
1）在xcode
中拖动libtesseract_full.a2）在xcode $ b中拖动tessdata文件夹$ b 3）在xcode中拖动baseapi.h
1) Dragged "libtesseract_full.a" in xcode 2) Dragged "tessdata" folder in xcode 3) Dragged "baseapi.h" in xcode
现在当我使用Tesseract时 -
Now when I am using Tesseract -
// init the tesseract engine.
tess = new TessBaseAPI();
tess->SimpleInit([dataPath cStringUsingEncoding:NSUTF8StringEncoding], // Path to tessdata-no ending /.
"eng", // ISO 639-3 string or NULL.
false);
我收到以下错误（我认为有一些框架或类似的东西丢失，但不是得到缺少的东西，tesseract演示项目在我的系统上工作正常）
I am getting these below errors (I think there is some framework or something like that missing, but not getting what is missing, tesseract demo project is working fine on my system)
clang: warning: argument unused during compilation: '-stdc++'
ld: warning: CPU_SUBTYPE_ARM_ALL subtype is deprecated: /Users/saurabhsharma/Desktop/Tess/SnapXv2/libtesseract_full.a(libtesseract_full.o)
Undefined symbols for architecture armv7:
"std::basic_ostream<char, std::char_traits<char> >& std::operator<<<std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)", referenced from:
SVNetwork::SVNetwork(char const*, int) in libtesseract_full.a(libtesseract_full.o)
"std::_Rb_tree_decrement(std::_Rb_tree_node_base*)", referenced from:
std::_Rb_tree_iterator<std::pair<char const* const, int> >::operator--() in libtesseract_full.a(libtesseract_full.o)
std::_Rb_tree_iterator<std::pair<int const, VariableContent*> >::operator--() in libtesseract_full.a(libtesseract_full.o)
std::_Rb_tree_iterator<std::pair<std::pair<ScrollView*, SVEventType> const, std::pair<SVSemaphore*, SVEvent*> > >::operator--() in libtesseract_full.a(libtesseract_full.o)
std::_Rb_tree_iterator<std::pair<int const, ScrollView*> >::operator--() in libtesseract_full.a(libtesseract_full.o)
"std::string::operator+=(char const*)", referenced from:
ScrollView::SendPolygon() in libtesseract_full.a(libtesseract_full.o)
"std::ios_base::Init::Init()", referenced from:
__static_initialization_and_destruction_0(int, int) in libtesseract_full.a(libtesseract_full.o)
__static_initialization_and_destruction_0(int, int) in libtesseract_full.a(libtesseract_full.o)
"std::string::size() const", referenced from:
SVNetwork::Flush() in libtesseract_full.a(libtesseract_full.o)
"std::__throw_length_error(char const*)", referenced from:
std::vector<int, std::allocator<int> >::_M_insert_aux(__gnu_cxx::__normal_iterator<int*, std::vector<int, std::allocator<int> > >, int const&) in libtesseract_full.a(libtesseract_full.o)
"std::string::erase(unsigned long, unsigned long)", referenced from:
SVNetwork::Flush() in libtesseract_full.a(libtesseract_full.o)
"std::_Rb_tree_rebalance_for_erase(std::_Rb_tree_node_base*, std::_Rb_tree_node_base&)", referenced from:
std::_Rb_tree<int, std::pair<int const, ScrollView*>, std::_Select1st<std::pair<int const, ScrollView*> >, std::less<int>, std::allocator<std::pair<int const, ScrollView*> > >::erase(std::_Rb_tree_iterator<std::pair<int const, ScrollView*> >) in libtesseract_full.a(libtesseract_full.o)
std::_Rb_tree<std::pair<ScrollView*, SVEventType>, std::pair<std::pair<ScrollView*, SVEventType> const, std::pair<SVSemaphore*, SVEvent*> >, std::_Select1st<std::pair<std::pair<ScrollView*, SVEventType> const, std::pair<SVSemaphore*, SVEvent*> > >, std::less<std::pair<ScrollView*, SVEventType> >, std::allocator<std::pair<std::pair<ScrollView*, SVEventType> const, std::pair<SVSemaphore*, SVEvent*> > > >::erase(std::_Rb_tree_iterator<std::pair<std::pair<ScrollView*, SVEventType> const, std::pair<SVSemaphore*, SVEvent*> > >) in libtesseract_full.a(libtesseract_full.o)
"std::string::length() const", referenced from:
SVNetwork::Flush() in libtesseract_full.a(libtesseract_full.o)
"std::string::operator+=(char)", referenced from:
ScrollView::SendPolygon() in libtesseract_full.a(libtesseract_full.o)
"std::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()", referenced from:
ScrollView::SendPolygon() in libtesseract_full.a(libtesseract_full.o)
SVNetwork::SVNetwork(char const*, int) in libtesseract_full.a(libtesseract_full.o)
"std::_Rb_tree_increment(std::_Rb_tree_node_base*)", referenced from:
std::_Rb_tree_iterator<std::pair<int const, VariableContent*> >::operator++() in libtesseract_full.a(libtesseract_full.o)
std::_Rb_tree_iterator<std::pair<char const* const, int> >::operator++() in libtesseract_full.a(libtesseract_full.o)
std::_Rb_tree_iterator<std::pair<int const, ScrollView*> >::operator++() in libtesseract_full.a(libtesseract_full.o)
std::_Rb_tree_iterator<std::pair<std::pair<ScrollView*, SVEventType> const, std::pair<SVSemaphore*, SVEvent*> > >::operator++() in libtesseract_full.a(libtesseract_full.o)
std::_Rb_tree_iterator<std::pair<int const, ScrollView*> >::operator++(int) in libtesseract_full.a(libtesseract_full.o)
std::_Rb_tree_iterator<std::pair<std::pair<ScrollView*, SVEventType> const, std::pair<SVSemaphore*, SVEvent*> > >::operator++(int) in libtesseract_full.a(libtesseract_full.o)
"std::_Rb_tree_insert_and_rebalance(bool, std::_Rb_tree_node_base*, std::_Rb_tree_node_base*, std::_Rb_tree_node_base&)", referenced from:
std::_Rb_tree<int, std::pair<int const, VariableContent*>, std::_Select1st<std::pair<int const, VariableContent*> >, std::less<int>, std::allocator<std::pair<int const, VariableContent*> > >::_M_insert(std::_Rb_tree_node_base*, std::_Rb_tree_node_base*, std::pair<int const, VariableContent*> const&) in libtesseract_full.a(libtesseract_full.o)
std::_Rb_tree<char const*, std::pair<char const* const, int>, std::_Select1st<std::pair<char const* const, int> >, std::less<char const*>, std::allocator<std::pair<char const* const, int> > >::_M_insert(std::_Rb_tree_node_base*, std::_Rb_tree_node_base*, std::pair<char const* const, int> const&) in libtesseract_full.a(libtesseract_full.o)
std::_Rb_tree<int, std::pair<int const, ScrollView*>, std::_Select1st<std::pair<int const, ScrollView*> >, std::less<int>, std::allocator<std::pair<int const, ScrollView*> > >::_M_insert(std::_Rb_tree_node_base*, std::_Rb_tree_node_base*, std::pair<int const, ScrollView*> const&) in libtesseract_full.a(libtesseract_full.o)
std::_Rb_tree<std::pair<ScrollView*, SVEventType>, std::pair<std::pair<ScrollView*, SVEventType> const, std::pair<SVSemaphore*, SVEvent*> >, std::_Select1st<std::pair<std::pair<ScrollView*, SVEventType> const, std::pair<SVSemaphore*, SVEvent*> > >, std::less<std::pair<ScrollView*, SVEventType> >, std::allocator<std::pair<std::pair<ScrollView*, SVEventType> const, std::pair<SVSemaphore*, SVEvent*> > > >::_M_insert(std::_Rb_tree_node_base*, std::_Rb_tree_node_base*, std::pair<std::pair<ScrollView*, SVEventType> const, std::pair<SVSemaphore*, SVEvent*> > const&) in libtesseract_full.a(libtesseract_full.o)
"std::ios_base::Init::~Init()", referenced from:
___tcf_0 in libtesseract_full.a(libtesseract_full.o)
___tcf_0 in libtesseract_full.a(libtesseract_full.o)
"std::string::c_str() const", referenced from:
ScrollView::SendPolygon() in libtesseract_full.a(libtesseract_full.o)
SVNetwork::Flush() in libtesseract_full.a(libtesseract_full.o)
"std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string()", referenced from:
ScrollView::SendPolygon() in libtesseract_full.a(libtesseract_full.o)
SVNetwork::SVNetwork(char const*, int) in libtesseract_full.a(libtesseract_full.o)
"std::string::append(char const*)", referenced from:
SVNetwork::Send(char const*) in libtesseract_full.a(libtesseract_full.o)
"std::cout", referenced from:
SVNetwork::SVNetwork(char const*, int) in libtesseract_full.a(libtesseract_full.o)
ld: symbol(s) not found for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)
任何帮助都将不胜感激。
Any help would be appreciated.
推荐答案
刚刚将构建设置中的C ++标准库更改为libstdc ++（GNU C ++标准库），错误消失了......感谢@ H2CO3提示。
just changed "C++ Standard Library" in build settings to "libstdc++ (GNU C++ standard library)" and errors are gone… Thanks @H2CO3 for hint.
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