Android Studio执行任务“：app：externalNativeBuildDebug”失败。

Question

我正在尝试运行这个项目https://github.com/eyetrackingDB/GazeTrackingFramework。 我已经安装了Android Studio 2.3.3，带有NDK 15.1.4119039，Gradle版本为3.3，Android插件版本为2.3.3。

编译Sdk版本：API 21：Android 5.0（棒棒糖） 构建工具版本：26.0.1 Min Sdk版本：API 19：Android 4.4（奇巧巧克力） 目标SdK版本：API 21：Android 5.0（棒棒糖）

可能我漏掉了什么或者版本有不兼容的问题，因为这应该是一个简单的应用程序。

FAILURE: Build failed with an exception. 

* What went wrong:
Execution failed for task ':app:externalNativeBuildDebug'.
> Build command failed.
  Error while executing process /Users/younghov/Library/Android/sdk/ndk-bundle/ndk-build with arguments {NDK_PROJECT_PATH=null APP_BUILD_SCRIPT=/Users/younghov/AndroidStudioProjects/GazeTrackingFramework-master7/app/src/main/jni/Android.mk NDK_APPLICATION_MK=/Users/younghov/AndroidStudioProjects/GazeTrackingFramework-master7/app/src/main/jni/Application.mk APP_ABI=mips64 NDK_ALL_ABIS=mips64 NDK_DEBUG=1 APP_PLATFORM=android-21 NDK_OUT=/Users/younghov/AndroidStudioProjects/GazeTrackingFramework-master7/app/build/intermediates/ndkBuild/debug/obj NDK_LIBS_OUT=/Users/younghov/AndroidStudioProjects/GazeTrackingFramework-master7/app/build/intermediates/ndkBuild/debug/lib /Users/younghov/AndroidStudioProjects/GazeTrackingFramework-master7/app/build/intermediates/ndkBuild/debug/obj/local/mips64/libeyetab_tracker.so}
  Android NDK: WARNING:/Users/younghov/AndroidStudioProjects/GazeTrackingFramework-master7/app/src/main/jni/Android.mk:eyetab_tracker: non-system libraries in linker flags: -lopencv_java    
  Android NDK:     This is likely to result in incorrect builds. Try using LOCAL_STATIC_LIBRARIES    
  Android NDK:     or LOCAL_SHARED_LIBRARIES instead to list the library dependencies of the    
  Android NDK:     current module    
  [mips64] SharedLibrary  : libeyetab_tracker.so
  /Users/younghov/Library/Android/sdk/ndk-bundle/toolchains/mips64el-linux-android-4.9/prebuilt/darwin-x86_64/bin/../lib/gcc/mips64el-linux-android/4.9.x/../../../../mips64el-linux-android/bin/ld: cannot find -lopencv_java
  collect2: error: ld returned 1 exit status
  make: *** [/Users/younghov/AndroidStudioProjects/GazeTrackingFramework-master7/app/build/intermediates/ndkBuild/debug/obj/local/mips64/libeyetab_tracker.so] Error 1


* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

- Youngho Pak

Answer 1

尝试重新安装您的NDK。也许您的NDK安装已损坏。 前往SDK管理器并导航到外观和行为/系统设置/Android SDK。

在选项卡菜单中选择SDK工具，取消选中NDK复选框->应用。 卸载后->再次标记NDK并应用。

这对我解决了问题，希望它也能帮助您。

- Martin Warmhold