PluginOneSignal/PluginOneSignal.h' file not found

Question

**while debugging the project its showing plugin one signal not found and ninja build stopped command,

I tried everything, I installed ninja then also it's not working,

In file included from C:\Users\Vaka\Desktop\cocosproject\proj.android\app\jni\hellocpp\main.cpp:30: C:\Users\Vaka\Desktop\cocosproject\Classes\AppDelegate.h:29:10: fatal error: 'PluginOneSignal/PluginOneSignal.h' file not found`#include

android.mk file`

LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)

LOCAL_MODULE := MyGame_shared

LOCAL_MODULE_FILENAME := libMyGame

LOCAL_SRC_FILES := /hellocpp/main.cpp \
../Classes/AppDelegate.cpp \
../../../Classes/HelloWorldScene.cpp

LOCAL_CPPFLAGS := -DSDKBOX_ENABLED
LOCAL_LDLIBS := -landroid \
-llog
LOCAL_C_INCLUDES := $(LOCAL_PATH)/../../../Classes
LOCAL_WHOLE_STATIC_LIBRARIES := PluginOneSignal \
sdkbox

# _COCOS_HEADER_ANDROID_BEGIN
# _COCOS_HEADER_ANDROID_END


LOCAL_STATIC_LIBRARIES := cc_static

# _COCOS_LIB_ANDROID_BEGIN
# _COCOS_LIB_ANDROID_END

include $(BUILD_SHARED_LIBRARY)
$(call import-add-path,$(LOCAL_PATH))

$(call import-module, cocos)
$(call import-module, ./sdkbox)
$(call import-module, ./PluginOneSignal)

# _COCOS_LIB_IMPORT_ANDROID_BEGIN
# _COCOS_LIB_IMPORT_ANDROID_END

below is the CMAKELIST.txt

cmake_minimum_required(VERSION 3.6)

set(APP_NAME cocos project)

project(${APP_NAME})

set(COCOS2DX_ROOT_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cocos2d)
set(CMAKE_MODULE_PATH ${COCOS2DX_ROOT_PATH}/cmake/Modules/)

include(CocosBuildSet)
add_subdirectory(${COCOS2DX_ROOT_PATH}/cocos ${ENGINE_BINARY_PATH}/cocos/core)

# record sources, headers, resources...
set(GAME_SOURCE)
set(GAME_HEADER)

set(GAME_RES_FOLDER
    "${CMAKE_CURRENT_SOURCE_DIR}/Resources"
    )
if(APPLE OR WINDOWS)
    cocos_mark_multi_resources(common_res_files RES_TO "Resources" FOLDERS ${GAME_RES_FOLDER})
endif()

# add cross-platforms source files and header files 
list(APPEND GAME_SOURCE
     Classes/AppDelegate.cpp
     Classes/HelloWorldScene.cpp
     )
list(APPEND GAME_HEADER
     Classes/AppDelegate.h
     Classes/HelloWorldScene.h
     )

if(ANDROID)
    # change APP_NAME to the share library name for Android, it's value depend on AndroidManifest.xml
    set(APP_NAME MyGame)
    list(APPEND GAME_SOURCE
         proj.android/app/jni/hellocpp/main.cpp
         )
elseif(LINUX)
    list(APPEND GAME_SOURCE
         proj.linux/main.cpp
         )
elseif(WINDOWS)
    list(APPEND GAME_HEADER
         proj.win32/main.h
         proj.win32/resource.h
         )
    list(APPEND GAME_SOURCE
         proj.win32/main.cpp
         proj.win32/game.rc
         ${common_res_files}
         )
elseif(APPLE)
    if(IOS)
        list(APPEND GAME_HEADER
             proj.ios_mac/ios/AppController.h
             proj.ios_mac/ios/RootViewController.h
             )
        set(APP_UI_RES
            proj.ios_mac/ios/LaunchScreen.storyboard
            proj.ios_mac/ios/LaunchScreenBackground.png
            proj.ios_mac/ios/Images.xcassets
            )
        list(APPEND GAME_SOURCE
             proj.ios_mac/ios/main.m
             proj.ios_mac/ios/AppController.mm
             proj.ios_mac/ios/RootViewController.mm
             proj.ios_mac/ios/Prefix.pch
             ${APP_UI_RES}
             )
    elseif(MACOSX)
        set(APP_UI_RES
            proj.ios_mac/mac/Icon.icns
            proj.ios_mac/mac/Info.plist
            )
        list(APPEND GAME_SOURCE
             proj.ios_mac/mac/main.cpp
             proj.ios_mac/mac/Prefix.pch
             ${APP_UI_RES}
             )
    endif()
    list(APPEND GAME_SOURCE ${common_res_files})
endif()

# mark app complie info and libs info
set(all_code_files
    ${GAME_HEADER}
    ${GAME_SOURCE}
    )
if(NOT ANDROID)
    add_executable(${APP_NAME} ${all_code_files})
else()
    add_library(${APP_NAME} SHARED ${all_code_files})
    add_subdirectory(${COCOS2DX_ROOT_PATH}/cocos/platform/android ${ENGINE_BINARY_PATH}/cocos/platform)
    target_link_libraries(${APP_NAME} -Wl,--whole-archive cpp_android_spec -Wl,--no-whole-archive)
endif()

target_link_libraries(${APP_NAME} cocos2d)
target_include_directories(${APP_NAME}
        PRIVATE Classes
        PRIVATE ${COCOS2DX_ROOT_PATH}/cocos/audio/include/
)

# mark app resources
setup_cocos_app_config(${APP_NAME})
if(APPLE)
    set_target_properties(${APP_NAME} PROPERTIES RESOURCE "${APP_UI_RES}")
    if(MACOSX)
        set_target_properties(${APP_NAME} PROPERTIES
                              MACOSX_BUNDLE_INFO_PLIST "${CMAKE_CURRENT_SOURCE_DIR}/proj.ios_mac/mac/Info.plist"
                              )
    elseif(IOS)
        cocos_pak_xcode(${APP_NAME} INFO_PLIST "iOSBundleInfo.plist.in")
        set_xcode_property(${APP_NAME} ASSETCATALOG_COMPILER_APPICON_NAME "AppIcon")
        set_xcode_property(${APP_NAME} DEVELOPMENT_TEAM "")
        set_xcode_property(${APP_NAME} CODE_SIGN_IDENTITY "iPhone Developer")
    endif()
elseif(WINDOWS)
    cocos_copy_target_dll(${APP_NAME})
endif()

if(LINUX OR WINDOWS)
    set(APP_RES_DIR "$<TARGET_FILE_DIR:${APP_NAME}>/Resources")
    cocos_copy_target_res(${APP_NAME} COPY_TO ${APP_RES_DIR} FOLDERS ${GAME_RES_FOLDER})
endif()