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Android NDK无法编译示例应用程序_Android_C++_Android Ndk_Java Native Interface - Fatal编程技术网

Android NDK无法编译示例应用程序

Android NDK无法编译示例应用程序,android,c++,android-ndk,java-native-interface,Android,C++,Android Ndk,Java Native Interface,当我尝试在我的项目上运行ndk build时,是什么导致了这个strang错误?我一字不差地遵循了这个例子 我能够完美地编译和运行NDK附带的android示例 我的make文件中没有不必要的空格 我的项目属性在eclipse中似乎还可以 我没有生成obj。我的项目中的文件夹或头文件 所有项目文件都位于默认工作区中(只有ndk生成位于ndk文件夹中) 有问题的错误: C:\Users\adam.kim\workspace\UWBcontroler\jni> C:/android-ndk-r

当我尝试在我的项目上运行ndk build时,是什么导致了这个strang错误?我一字不差地遵循了这个例子 我能够完美地编译和运行NDK附带的android示例

  • 我的make文件中没有不必要的空格
  • 我的项目属性在eclipse中似乎还可以
  • 我没有生成obj。我的项目中的文件夹或头文件
  • 所有项目文件都位于默认工作区中(只有ndk生成位于ndk文件夹中)
  • 有问题的错误:

    C:\Users\adam.kim\workspace\UWBcontroler\jni> C:/android-ndk-r8e/ndk-build
    make: *** No rule to make target `C:/Users/adam.kim/workspace/UWBcontroler//jni/
    native.c', needed by `C:/Users/adam.kim/workspace/UWBcontroler//obj/local/armeab
    i/objs/adamsndk/native.o'.  Stop.
    
    Android.mk

        LOCAL_PATH:=$(call my-dir)
        include $(CLEAR_VARS)
    
        LOCAL_LDLIBS := -llog
        LOCAL_MODULE    := adamsndk
        LOCAL_SRC_FILES := native.c
    
        include $(BUILD_SHARED_LIBRARY)
    
    add-application.mk(位于安装期间创建的ndk文件夹中) 我唯一更改的一行是从sdk 14到8的APP_PIE APP_平台

    APP_DEBUG := $(strip $(NDK_DEBUG))
    ifeq ($(APP_DEBUG),0)
      APP_DEBUG:= false
    endif
    ifeq ($(APP_DEBUG),1)
      APP_DEBUG := true
    endif
    ifdef APP_DEBUG
      ifneq (,$(filter-out true false,$(APP_DEBUG)))
        $(call __ndk_warning,NDK_DEBUG is defined to the unsupported value '$(NDK_DEBUG)', will be ignored!)
      endif
    endif
    
    include $(_application_mk)
    
    $(call check-required-vars,$(NDK_APP_VARS_REQUIRED),$(_application_mk))
    
    _map := NDK_APP.$(_app)
    
    # strip the 'lib' prefix in front of APP_MODULES modules
    APP_MODULES := $(call strip-lib-prefix,$(APP_MODULES))
    
    APP_PROJECT_PATH := $(strip $(APP_PROJECT_PATH))
    ifndef APP_PROJECT_PATH
        APP_PROJECT_PATH := $(NDK_PROJECT_PATH)
    endif
    
    # check whether APP_PLATFORM is defined. If not, look for project.properties in
    # the $(APP_PROJECT_PATH) and extract the value with awk's help. If nothing is here,
    # revert to the default value (i.e. "android-3").
    #
    APP_PLATFORM := $(strip $(APP_PLATFORM))
    ifndef APP_PLATFORM
        _local_props := $(strip $(wildcard $(APP_PROJECT_PATH)/project.properties))
        ifndef _local_props
            # NOTE: project.properties was called default.properties before
            _local_props := $(strip $(wildcard $(APP_PROJECT_PATH)/default.properties))
        endif
        ifdef _local_props
            APP_PLATFORM := $(strip $(shell $(HOST_AWK) -f $(BUILD_AWK)/extract-platform.awk $(call host-path,$(_local_props))))
            $(call ndk_log,  Found APP_PLATFORM=$(APP_PLATFORM) in $(_local_props))
        else
            APP_PLATFORM := android-3
            $(call ndk_log,  Defaulted to APP_PLATFORM=$(APP_PLATFORM))
        endif
    endif
    
    # SPECIAL CASES:
    # 1) android-6 and android-7 are the same thing as android-5
    # 2) android-10 .. 13 is the same thing as android-9
    #
    APP_PLATFORM_LEVEL := $(strip $(subst android-,,$(APP_PLATFORM)))
    ifneq (,$(filter 6 7,$(APP_PLATFORM_LEVEL)))
        APP_PLATFORM := android-5
        $(call ndk_log,  Adjusting APP_PLATFORM android-$(APP_PLATFORM_LEVEL) to $(APP_PLATFORM))
    endif
    ifneq (,$(filter 10 11 12 13,$(APP_PLATFORM_LEVEL)))
        APP_PLATFORM := android-9
        $(call ndk_log,  Adjusting APP_PLATFORM android-$(APP_PLATFORM_LEVEL) to $(APP_PLATFORM))
    endif
    
    # If APP_PIE isn't defined, set it to true for android-16 and above
    #
    APP_PIE := $(strip $(APP_PIE))
    $(call ndk_log,  APP_PIE is $(APP_PIE))
    ifndef APP_PIE
        ifneq (,$(call gte,$(APP_PLATFORM_LEVEL),16))
            APP_PLATFORM := android-8
            $(call ndk_log,  Adjusting APP_PLATFORM android-$(APP_PLATFORM_LEVEL) to $(APP_PLATFORM) and enabling -fPIE)
            APP_PIE := true
        else
            APP_PIE := false
        endif
    endif
    
    # Check that the value of APP_PLATFORM corresponds to a known platform
    # If not, we're going to use the max supported platform value.
    #
    _bad_platform := $(strip $(filter-out $(NDK_ALL_PLATFORMS),$(APP_PLATFORM)))
    ifdef _bad_platform
        $(call ndk_log,Application $(_app) targets unknown platform '$(_bad_platform)')
        APP_PLATFORM := android-$(NDK_MAX_PLATFORM_LEVEL)
        $(call ndk_log,Switching to $(APP_PLATFORM))
    endif
    
    # Check platform level (after adjustment) against android:minSdkVersion in AndroidManifest.xml
    #
    APP_MANIFEST := $(strip $(wildcard $(APP_PROJECT_PATH)/AndroidManifest.xml))
    APP_PLATFORM_LEVEL := $(strip $(subst android-,,$(APP_PLATFORM)))
    ifdef APP_MANIFEST
      APP_MIN_PLATFORM_LEVEL := $(shell $(HOST_AWK) -f $(BUILD_AWK)/extract-minsdkversion.awk $(call host-path,$(APP_MANIFEST)))
      ifneq (,$(call gt,$(APP_PLATFORM_LEVEL),$(APP_MIN_PLATFORM_LEVEL)))
        $(call __ndk_warning,WARNING: APP_PLATFORM $(APP_PLATFORM) is larger than android:minSdkVersion $(APP_MIN_PLATFORM_LEVEL) in $(APP_MANIFEST))
      endif
    endif
    
    # Check that the value of APP_ABI corresponds to known ABIs
    # 'all' is a special case that means 'all supported ABIs'
    #
    # It will be handled in setup-app.mk. We can't hope to change
    # the value of APP_ABI is the user enforces it on the command-line
    # with a call like:  ndk-build APP_ABI=all
    #
    # Because GNU Make makes the APP_ABI variable read-only (any assignments
    # to it will be ignored)
    #
    APP_ABI := $(strip $(APP_ABI))
    ifndef APP_ABI
        # Default ABI is 'armeabi'
        APP_ABI := armeabi
    endif
    ifneq ($(APP_ABI),all)
        _bad_abis := $(strip $(filter-out $(NDK_ALL_ABIS),$(APP_ABIS)))
        ifdef _bad_abis
            $(call __ndk_info,Application $(_app) targets unknown ABI '$(_bad_abis)')
            $(call __ndk_info,Please fix the APP_ABI definition in $(_application_mk))
            $(call __ndk_info,to use a set of the following values: $(NDK_ALL_ABIS))
            $(call __ndk_error,Aborting)
        endif
    endif
    
    # If APP_BUILD_SCRIPT is defined, check that the file exists.
    # If undefined, look in $(APP_PROJECT_PATH)/jni/Android.mk
    #
    APP_BUILD_SCRIPT := $(strip $(APP_BUILD_SCRIPT))
    ifdef APP_BUILD_SCRIPT
        _build_script := $(strip $(wildcard $(APP_BUILD_SCRIPT)))
        ifndef _build_script
            $(call __ndk_info,Your APP_BUILD_SCRIPT points to an unknown file: $(APP_BUILD_SCRIPT))
            $(call __ndk_error,Aborting...)
        endif
        APP_BUILD_SCRIPT := $(_build_script)
        $(call ndk_log,  Using build script $(APP_BUILD_SCRIPT))
    else
        _build_script := $(strip $(wildcard $(APP_PROJECT_PATH)/jni/Android.mk))
        ifndef _build_script
            $(call __ndk_info,There is no Android.mk under $(APP_PROJECT_PATH)/jni)
            $(call __ndk_info,If this is intentional, please define APP_BUILD_SCRIPT to point)
            $(call __ndk_info,to a valid NDK build script.)
            $(call __ndk_error,Aborting...)
        endif
        APP_BUILD_SCRIPT := $(_build_script)
        $(call ndk_log,  Defaulted to APP_BUILD_SCRIPT=$(APP_BUILD_SCRIPT))
    endif
    
    # Determine whether the application should be debuggable.
    # - If APP_DEBUG is set to 'true', then it always should.
    # - If APP_DEBUG is set to 'false', then it never should
    # - Otherwise, extract the android:debuggable attribute from the manifest.
    #
    ifdef APP_DEBUG
      APP_DEBUGGABLE := $(APP_DEBUG)
      ifeq ($(NDK_LOG),1)
        ifeq ($(APP_DEBUG),true)
          $(call ndk_log,Application '$(_app)' forced debuggable through NDK_DEBUG)
        else
          $(call ndk_log,Application '$(_app)' forced *not* debuggable through NDK_DEBUG)
        endif
      endif
    else
      # NOTE: To make unit-testing simpler, handle the case where there is no manifest.
      APP_DEBUGGABLE := false
      ifdef APP_MANIFEST
        APP_DEBUGGABLE := $(shell $(HOST_AWK) -f $(BUILD_AWK)/extract-debuggable.awk $(call host-path,$(APP_MANIFEST)))
      endif
      ifeq ($(NDK_LOG),1)
        ifeq ($(APP_DEBUGGABLE),true)
          $(call ndk_log,Application '$(_app)' *is* debuggable)
        else
          $(call ndk_log,Application '$(_app)' is not debuggable)
        endif
      endif
    endif
    
    # LOCAL_BUILD_MODE will be either release or debug
    #
    # If APP_OPTIM is defined in the Application.mk, just use this.
    #
    # Otherwise, set to 'debug' if android:debuggable is set to TRUE,
    # and to 'release' if not.
    #
    ifneq ($(APP_OPTIM),)
        # check that APP_OPTIM, if defined, is either 'release' or 'debug'
        $(if $(filter-out release debug,$(APP_OPTIM)),\
            $(call __ndk_info, The APP_OPTIM defined in $(_application_mk) must only be 'release' or 'debug')\
            $(call __ndk_error,Aborting)\
        )
        $(call ndk_log,Selecting optimization mode through Application.mk: $(APP_OPTIM))
    else
        ifeq ($(APP_DEBUGGABLE),true)
            $(call ndk_log,Selecting debug optimization mode (app is debuggable))
            APP_OPTIM := debug
        else
            $(call ndk_log,Selecting release optimization mode (app is not debuggable))
            APP_OPTIM := release
        endif
    endif
    
    APP_CFLAGS := $(strip $(APP_CFLAGS))
    APP_LDFLAGS := $(strip $(APP_LDFLAGS))
    
    # Check that APP_STL is defined. If not, use the default value (system)
    # otherwise, check that the name is correct.
    APP_STL := $(strip $(APP_STL))
    ifndef APP_STL
        APP_STL := system
    else
        $(call ndk-stl-check,$(APP_STL))
    endif
    
    $(if $(call get,$(_map),defined),\
      $(call __ndk_info,Weird, the application $(_app) is already defined by $(call get,$(_map),defined))\
      $(call __ndk_error,Aborting)\
    )
    
    $(call set,$(_map),defined,$(_application_mk))
    
    # Record all app-specific variable definitions
    $(foreach __name,$(NDK_APP_VARS),\
      $(call set,$(_map),$(__name),$($(__name)))\
    )
    
    # Record the Application.mk for debugging
    $(call set,$(_map),Application.mk,$(_application_mk))
    
    NDK_ALL_APPS += $(_app)
    

    出于这样或那样的原因,在运行ndk构建之前,我必须在这台机器上创建适当的文件系统。在其他机器上,我不必事先手动创建文件夹(如obj、local、armeabi等),但在这台机器上,我必须在运行ndk build之前创建文件夹。。。希望这能节省一些时间。我使用的是带有win764位professional的Dell i7笔记本电脑,但我不确定这会对它产生什么影响。我仍然对整件事感到非常困惑,我会接受一个能提供一些启示的答案。。。我想知道这是否是一个权限问题(因为ndk build似乎无法创建目录),即使我对这台机器有管理权限。

    它找不到native.c-也许你把它放在了错误的文件夹中?