Error when including OpenCv framework in a Native Extension for IOS

问题

I'm creating an ANE for IOS that implements the OpenCV framework, but when I compile the app on Flash Builder I get this error:

Error occurred while packaging the application:

Undefined symbols for architecture armv7:
  "__ZNKSt3__120__vector_base_commonILb1EE20__throw_length_errorEv", referenced from:
      __ZNSt3__16vectorIN2cv3VecIiLi128EEENS_9allocatorIS3_EEE8__appendEm in opencv2(matrix.o)
      __ZNSt3__16vectorIN2cv3VecIiLi64EEENS_9allocatorIS3_EEE8__appendEm in opencv2(matrix.o)
      __ZNSt3__16vectorIN2cv3VecIiLi32EEENS_9allocatorIS3_EEE8__appendEm in opencv2(matrix.o)
      __ZNSt3__16vectorIN2cv3VecIiLi16EEENS_9allocatorIS3_EEE8__appendEm in opencv2(matrix.o)
      __ZNSt3__16vectorIN2cv3VecIiLi12EEENS_9allocatorIS3_EEE8__appendEm in opencv2(matrix.o)
      __ZNSt3__16vectorIN2cv3VecIiLi9EEENS_9allocatorIS3_EEE8__appendEm in opencv2(matrix.o)
      __ZNSt3__16vectorIN2cv3VecIiLi8EEENS_9allocatorIS3_EEE8__appendEm in opencv2(matrix.o)
      ...
ld: symbol(s) not found for architecture armv7
Compilation failed while executing : ld64

The error occurred after I added this line

<option>-framework opencv2</option>

to the linkerOption on the platformOptions.xml

Any idea?

回答1:

Problem solved. I've added this line

<option>-lc++</option>

to the platformOptions.xml.

Now OpenCV works great in my actionscript native extension.

来源：https://stackoverflow.com/questions/26022038/error-when-including-opencv-framework-in-a-native-extension-for-ios