Question

我试图在我的MacOS Android Studio 2.3.2上构建AndEngine示例。但得到这个错误。无法弄清楚是什么问题。奇怪的是同一个项目通常在Windows上构建，相同版本的Android Studio。

> FAILURE: Build failed with an exception.
What went wrong:
Execution failed for task ':andEngine:externalNativeBuildRelease'.
> Build command failed.
  Error while executing process /Users/apple/Library/Android/sdk/ndk-bundle/ndk-build with arguments {NDK_PROJECT_PATH=null APP_BUILD_SCRIPT=/Users/apple/Documents/workspace/AndroidStudio/AndEngineExamples-GLES2/andEngine/src/main/jni/Android.mk     

  NDK_APPLICATION_MK=/Users/apple/Documents/workspace/AndroidStudio/AndEngineExamples-GLES2/andEngine/src/main/jni/Application.mk APP_ABI=mips NDK_ALL_ABIS=mips NDK_DEBUG=0 APP_PLATFORM=android-9 NDK_OUT=/Users/apple/Documents/workspace/AndroidStudio/AndEngineExamples-GLES2/andEngine/build/intermediates/ndkBuild/release/obj NDK_LIBS_OUT=/Users/apple/Documents/workspace/AndroidStudio/AndEngineExamples-GLES2/andEngine/build/intermediates/ndkBuild/release/lib /Users/apple/Documents/workspace/AndroidStudio/AndEngineExamples-GLES2/andEngine/build/intermediates/ndkBuild/release/obj/local/mips/libandengine.so}
  Android NDK: android-9 is unsupported. Using minimum supported version android-14.    
  [mips] Compile++      : andengine_shared <= BufferUtils.cpp
  /Users/apple/Documents/workspace/AndroidStudio/AndEngineExamples-GLES2/andEngine/src/main/jni/src/BufferUtils.cpp:13:2: error: use of undeclared identifier 'memcpy'
          memcpy(bufferAddress, dataAddress + pOffset, pLength << 2);
          ^

我的Application.mk文件：

# Build both ARMv5TE and ARMv7-A and x86 machine code.
APP_ABI := armeabi armeabi-v7a x86
APP_STL := gnustl_shared

Android.mk：

LOCAL_PATH:= $(call my-dir)

include $(CLEAR_VARS)

LOCAL_MODULE             := andengine_shared
LOCAL_MODULE_FILENAME    := libandengine
LOCAL_CFLAGS             := -Werror
LOCAL_SRC_FILES          := src/GLES20Fix.c \
                             src/BufferUtils.cpp
LOCAL_LDLIBS             := -lGLESv2
LOCAL_EXPORT_C_INCLUDES  := $(LOCAL_PATH)/src

include $(BUILD_SHARED_LIBRARY)

Answer 1

Android NDK：不支持android-9。使用最低支持版本机器人-14。

在APP_PLATFORM := android-14档案

中添加Application.mk

如果您没有该行，则SDK的版本将从project.properties文件中获取。

Answer 2

Android Studio会覆盖Application.mk文件中的某些设置。例如，它会覆盖 APP_ABI 。你应该添加

defaultConfig {
    ...
    externalNativeBuild {
        ndkBuild {
            abiFilters "armeabi", "armeabi-v7a", "x86"
        }
    }
}

到 app / build.gradle 。您不应该担心最低支持版本为android-14的警告，但请注意NDK r15，目前仍处于测试阶段。

在构建AndEngine示例的NDK时出错

2 个答案: