E:/android-ndk-r16-beta1/build//…/sources/cxx-stl/gnu-libstdc++/4.9/include/bits/shared_ptr_base.h:373: error: undefined reference to ‘cocos2d::network::Downloader::~Downloader()’
G:/SVN_BUCKET/resource/minigames/jumpBall/build/jsb-default/frameworks/cocos2d-x/extensions/assets-manager/AssetsManagerEx.cpp:778: error: undefined reference to ‘cocos2d::network::Downloader::createDownloadFileTask(std::string const&, std::string const&, std::string const&)’
G:/SVN_BUCKET/resource/minigames/jumpBall/build/jsb-default/frameworks/cocos2d-x/extensions/assets-manager/AssetsManagerEx.cpp:715: error: undefined reference to ‘cocos2d::network::Downloader::createDownloadFileTask(std::string const&, std::string const&, std::string const&)’
G:/SVN_BUCKET/resource/minigames/jumpBall/build/jsb-default/frameworks/cocos2d-x/extensions/assets-manager/AssetsManagerEx.cpp:129: error: undefined reference to ‘cocos2d::network::Downloader::Downloader(cocos2d::network::DownloaderHints const&)’
E:/android-ndk-r16-beta1/build//…/sources/cxx-stl/gnu-libstdc++/4.9/include/bits/shared_ptr_base.h:573: error: undefined reference to ‘cocos2d::network::Downloader::~Downloader()’
G:/SVN_BUCKET/resource/minigames/jumpBall/build/jsb-default/frameworks/cocos2d-x/extensions/assets-manager/AssetsManagerEx.cpp:1355: error: undefined reference to ‘cocos2d::network::Downloader::createDownloadFileTask(std::string const&, std::string const&, std::string const&)’
collect2.exe: error: ld returned 1 exit status
make: *** [G:/SVN_BUCKET/resource/minigames/jumpBall/build/jsb-default/frameworks/runtime-src/proj.android-studio/app/build/intermediates/ndkBuild/release/obj/local/armeabi-v7a/libcocos2djs.so] Error 1