Внешние проблемы со встроенной сборкой Ошибка при настройке

Question

Я пытаюсь защитить свой ключ API, используя метод cmake, но получаю эту ошибку. Внешние проблемы со встроенной сборкой Ошибка при настройке. Под src / main / cpp / native-lib.cpp вот код ...

 #include <jni.h>
    #include <string>
    extern "C" JNIEXPORT jstring
    JNICALL
    Java_mobisoftseo_com_symcohr_LoginActivity_getApiKey(JNIEnv *env, jobject object) {
        std::string api_key = "Here is my api key";

    return env->NewStringUTF(api_key.c_str());
    } 

Затем в каталоге приложения у меня есть файл CMakeLists.txt, а вот код ...

# For more information about using CMake with Android Studio, read the
# documentation: https://d.android.com/studio/projects/add-native-code.html

# Sets the minimum version of CMake required to build the native library.

cmake_minimum_required(VERSION 3.4.1)

# Creates and names a library, sets it as either STATIC
# or SHARED, and provides the relative paths to its source code.
# You can define multiple libraries, and CMake builds them for you.
# Gradle automatically packages shared libraries with your APK.

add_library( # Sets the name of the library.
             native-lib

             # Sets the library as a shared library.
             SHARED

             # Provides a relative path to your source file(s).
             src/main/cpp/native-lib.cpp )

# Searches for a specified prebuilt library and stores the path as a
# variable. Because CMake includes system libraries in the search path by
# default, you only need to specify the name of the public NDK library
# you want to add. CMake verifies that the library exists before
# completing its build.

find_library( # Sets the name of the path variable.
              log-lib

              # Specifies the name of the NDK library that
              # you want CMake to locate.
              log )

# Specifies libraries CMake should link to your target library. You
# can link multiple libraries, such as libraries you define in this
# build script, prebuilt third-party libraries, or system libraries.

target_link_libraries( # Specifies the target library.
                       native-lib

                       # Links the target library to the log library
                       # included in the NDK.
                       ${log-lib} )

А потом в моей учетной записи LoginActivity у меня есть этот код.

 static {

        System.loadLibrary("native-lib");
    }

      public native String getApiKey();