构建库“ .a”文件时，XCode Linker错误

Question

I'm pretty new to Xcode and C++. I have a library that I am building and trying to link against. I have a project that compiles into a '.a' file which I then reference in my iOS test application. I continue to receive linker errors! I have the header file in my iOS test project. I believe I have all the required frameworks needed as well.

Undefined symbols for architecture armv7:

"MyCompany::ClientSDK::AudioRecognitionClient::AudioRecognitionClient()", referenced from: MyCompany::ClientSDK::AudioRecognitionClient::CreateInstance() in libiOSRecognitionSessionNative.a(AudioRecognitionClient.o) ld: symbol(s) not found for architecture armv7 clang: error: linker command failed with exit code 1 (use -v to see invocation)

Answer 1

Check the Build Settings for the library you are trying to link against. In particular, look for the Architectures setting and make sure that it includes armv7.