问题-20190918-01：（C++编译报错）编译报错log如下，如何解决？

Question

编译报错log如下，如何解决？

In file included from /home/msil/msil/workspace/lanfeiy/workSpace/projects/media/VoiceAssistant/src/VoiceAssistant.cpp:7:0:
/home/msil/msil/workspace/lanfeiy/workSpace/projects/media/VoiceAssistant/includes/VoiceAssistant.hpp:23:17: error: 'MediaTrackInfoExt' was not declared in this scope
     std::vector<MediaTrackInfoExt> getMetadataForTrackIds(const int32_t, std::vector<uint64_t>);
                 ^
/home/msil/msil/workspace/lanfeiy/workSpace/projects/media/VoiceAssistant/includes/VoiceAssistant.hpp:23:17: note: suggested alternative:
In file included from /home/msil/msil/workspace/lanfeiy/workSpace/projects/media/VoiceAssistant/includes/VoiceAssistant.hpp:10:0,
                 from /home/msil/msil/workspace/lanfeiy/workSpace/projects/media/VoiceAssistant/src/VoiceAssistant.cpp:7:
/home/msil/msil/workspace/lanfeiy/workSpace/projects/common-api/pub/MediaFramework/MediaTypes.hpp:349:20: note:   'com::clarion::media::MediaTrackInfoExt'
             struct MediaTrackInfoExt
                    ^
In file included from /home/msil/msil/workspace/lanfeiy/workSpace/projects/media/VoiceAssistant/src/VoiceAssistant.cpp:7:0:
/home/msil/msil/workspace/lanfeiy/workSpace/projects/media/VoiceAssistant/includes/VoiceAssistant.hpp:23:34: error: template argument 1 is invalid
     std::vector<MediaTrackInfoExt> getMetadataForTrackIds(const int32_t, std::vector<uint64_t>);
                                  ^
/home/msil/msil/workspace/lanfeiy/workSpace/projects/media/VoiceAssistant/includes/VoiceAssistant.hpp:23:34: error: template argument 2 is invalid
/home/msil/msil/workspace/lanfeiy/workSpace/projects/media/VoiceAssistant/src/VoiceAssistant.cpp:29:13: error: 'MediaTrackInfoExt' was not declared in this scope
 std::vector<MediaTrackInfoExt> VoiceAssistant::getMetadataForTrackIds(const int32_t, std::vector<uint64_t>)
             ^
/home/msil/msil/workspace/lanfeiy/workSpace/projects/media/VoiceAssistant/src/VoiceAssistant.cpp:29:13: note: suggested alternative:
In file included from /home/msil/msil/workspace/lanfeiy/workSpace/projects/media/VoiceAssistant/includes/VoiceAssistant.hpp:10:0,
                 from /home/msil/msil/workspace/lanfeiy/workSpace/projects/media/VoiceAssistant/src/VoiceAssistant.cpp:7:
/home/msil/msil/workspace/lanfeiy/workSpace/projects/common-api/pub/MediaFramework/MediaTypes.hpp:349:20: note:   'com::clarion::media::MediaTrackInfoExt'
             struct MediaTrackInfoExt
                    ^
/home/msil/msil/workspace/lanfeiy/workSpace/projects/media/VoiceAssistant/src/VoiceAssistant.cpp:29:30: error: template argument 1 is invalid
 std::vector<MediaTrackInfoExt> VoiceAssistant::getMetadataForTrackIds(const int32_t, std::vector<uint64_t>)
                              ^
/home/msil/msil/workspace/lanfeiy/workSpace/projects/media/VoiceAssistant/src/VoiceAssistant.cpp:29:30: error: template argument 2 is invalid
VoiceAssistant/CMakeFiles/VoiceAssistant.dir/build.make:62: recipe for target 'VoiceAssistant/CMakeFiles/VoiceAssistant.dir/src/VoiceAssistant.cpp.o' failed
make[2]: *** [VoiceAssistant/CMakeFiles/VoiceAssistant.dir/src/VoiceAssistant.cpp.o] Error 1
CMakeFiles/Makefile2:906: recipe for target 'VoiceAssistant/CMakeFiles/VoiceAssistant.dir/all' failed
make[1]: *** [VoiceAssistant/CMakeFiles/VoiceAssistant.dir/all] Error 2
Makefile:127: recipe for target 'all' failed
make: *** [all] Error 2

Answer 1

MediaTrackInfoExt是函数么？说没定义啊