How to resolve Android ndk build command faild?

I am developing simple ndk sample example using android ndk in android studio. While running my app studio shows below errors.

Build command failed.
Error while executing process D:\Sdk\cmake\3.6.4111459\bin\cmake.exe with 
arguments {--build D:\Android Studio\Workspace\NDKSample\app\.externalNativeBuild\cmake\debug\arm64-v8a --target native-lib}
[1/2] Building CXX object CMakeFiles/native-lib.dir/src/main/cpp/native-lib.cpp.oFAILED: D:\Sdk\ndk-bundle\toolchains\llvm\prebuilt\windows-x86_64\bin\clang++.exe  --target=aarch64-none-linux-android --gcc-toolchain=D:/Sdk/ndk-bundle/toolchains/aarch64-linux-android-4.9/prebuilt/windows-x86_64 --sysroot=D:/Sdk/ndk-bundle/sysroot  -Dnative_lib_EXPORTS -isystem D:/Sdk/ndk-bundle/sources/cxx-stl/gnu-libstdc++/4.9/include -isystem D:/Sdk/ndk-bundle/sources/cxx-stl/gnu-libstdc++/4.9/libs/arm64-v8a/include -isystem D:/Sdk/ndk-bundle/sources/cxx-stl/gnu-libstdc++/4.9/include/backward -isystem D:/Sdk/ndk-bundle/sysroot/usr/include/aarch64-linux-android -D__ANDROID_API__=21 -g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -Wa,--noexecstack -Wformat -Werror=format-security  -frtti -fexceptions -O0 -fno-limit-debug-info  -fPIC -MD -MT CMakeFiles/native-lib.dir/src/main/cpp/native-lib.cpp.o -MF CMakeFiles\native-lib.dir\src\main\cpp\native-lib.cpp.o.d -o CMakeFiles/native-lib.dir/src/main/cpp/native-lib.cpp.o -c "D:\Android Studio\Workspace\NDKSample\app\src\main\cpp\native-lib.cpp"
error: error reading 'D:\Android Studio\Workspace\NDKSample\app\src\main\cpp\native-lib.cpp'
1 error generated.ninja: build stopped: subcommand failed.

I have search lot but not able to find proper answer that why I am asking here. I have also unintsall all the components and re-install on my studio still error is there.

Another thing If I change file extension to .C from .CPP whole project gets complied and even runs properly. I don't know why Its not working for .CPP file.

Components I am using.

Android Stuido - 3.1.3

gradle - 3.1.0

cmake - 3.6.4111459

Android ndk - 17.1.4828580

lldb -3.1

native-lib.cpp

#include <jni.h>#include <string>extern "C" JNIEXPORT jstringJNICALLJava_com_mastek_ndksample_MainActivity_stringFromJNI(
    JNIEnv *env,
    jobject /* this */) {
std::string hello = "Hello from C++";
return env->NewStringUTF(hello.c_str());}

build.gradle

apply plugin: 'com.android.application'android {    compileSdkVersion 27
defaultConfig {
    applicationId "com.example.ndksample"
    minSdkVersion 15
    targetSdkVersion 27
    versionCode 1
    versionName "1.0"
    testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    externalNativeBuild {
        cmake {
            cppFlags "-frtti -fexceptions"
        }
    }

}

sourceSets {
    main {
        jniLibs.srcDirs = ['src/main/jniLibs']
    }
}

buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
}
externalNativeBuild {
    cmake {
        path "CMakeLists.txt"
    }
}}dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:27.1.1'
implementation 'com.android.support.constraint:constraint-layout:1.1.2'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'}

Anyone know please help me to solve this problem. Thanks in advance.

NDK build fails miserably when the path to project files contains spaces. To fix your build, copy the project to path without spaces.

After lot of trials and help from github google guy I am able to solve. To resolve problem I have follow below steps.

1.go to project directory.

2.deleted .gradle ,app/.externalNativeBuild and app/build.

3.changed local.properties ndk path to external ndk-r16b.

4.Run through Android studio.

5.Finally apk is generate.

来源：https://stackoverflow.com/questions/51100111/how-to-resolve-android-ndk-build-command-faild

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