我在 Android Studio 中从代码示例 (Hello JIN) 打开一个新项目时遇到错误。当项目打开如下：
Build command failed.
Error while executing process /opt/android-sdk/cmake/3.6.4111459/bin/cmake with arguments {-H/home/max/Documents/AndroidStudioProjects/HelloJNI1/app/src/main/cpp -B/home/max/Documents/AndroidStudioProjects/HelloJNI1/app/.externalNativeBuild/cmake/arm8Release/arm64-v8a -GAndroid Gradle - Ninja -DANDROID_ABI=arm64-v8a -DANDROID_NDK=/opt/android-sdk/ndk-bundle -DCMAKE_LIBRARY_OUTPUT_DIRECTORY=/home/max/Documents/AndroidStudioProjects/HelloJNI1/app/build/intermediates/cmake/arm8/release/obj/arm64-v8a -DCMAKE_BUILD_TYPE=Release -DCMAKE_MAKE_PROGRAM=/opt/android-sdk/cmake/3.6.4111459/bin/ninja -DCMAKE_TOOLCHAIN_FILE=/opt/android-sdk/ndk-bundle/build/cmake/android.toolchain.cmake -DANDROID_PLATFORM=android-23 -DANDROID_TOOLCHAIN=clang}
-- Check for working C compiler: /opt/android-sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin/clang
-- Check for working C compiler: /opt/android-sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin/clang -- broken
-- Configuring incomplete, errors occurred!
See also "/home/max/Documents/AndroidStudioProjects/HelloJNI1/app/.externalNativeBuild/cmake/arm8Release/arm64-v8a/CMakeFiles/CMakeOutput.log".
See also "/home/max/Documents/AndroidStudioProjects/HelloJNI1/app/.externalNativeBuild/cmake/arm8Release/arm64-v8a/CMakeFiles/CMakeError.log".
CMake Error at /opt/android-sdk/cmake/3.6.4111459/share/cmake-3.6/Modules/CMakeTestCCompiler.cmake:61 (message):
The C compiler
"/opt/android-sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin/clang"
is not able to compile a simple test program.
It fails with the following output:
Change Dir: /home/max/Documents/AndroidStudioProjects/HelloJNI1/app/.externalNativeBuild/cmake/arm8Release/arm64-v8a/CMakeFiles/CMakeTmp
Run Build Command:"/opt/android-sdk/cmake/3.6.4111459/bin/ninja"
"cmTC_0053d"
[1/2] Building C object CMakeFiles/cmTC_0053d.dir/testCCompiler.c.o
FAILED:
/opt/android-sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin/clang
--target=aarch64-none-linux-android
--gcc-toolchain=/opt/android-sdk/ndk-bundle/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64
--sysroot=/opt/android-sdk/ndk-bundle/sysroot -isystem
/opt/android-sdk/ndk-bundle/sysroot/usr/include/aarch64-linux-android
-D__ANDROID_API__=23 -g -DANDROID -ffunction-sections -funwind-tables
-fstack-protector-strong -no-canonical-prefixes -Wa,--noexecstack -Wformat
-Werror=format-security -fPIE -o
CMakeFiles/cmTC_0053d.dir/testCCompiler.c.o -c
/home/max/Documents/AndroidStudioProjects/HelloJNI1/app/.externalNativeBuild/cmake/arm8Release/arm64-v8a/CMakeFiles/CMakeTmp/testCCompiler.c
/opt/android-sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin/clang:
error while loading shared libraries: libncurses.so.5: cannot open shared
object file: No such file or directory
ninja: build stopped: subcommand failed.
CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
CMakeLists.txt
此错误在 IDE 中多次下降
我正在使用 Arch-Linux 64x
Cmake.txt:
cmake_minimum_required(VERSION 3.4.1)
add_library(hello-jni SHARED
hello-jni.c)
# Include libraries needed for hello-jni lib
target_link_libraries(hello-jni
android
log)
Build -> Refresh Linked C++ Projects 为我解决了这个错误。
我在网上找到了这个解决方案并且有效，但是没有解释它是如何工作的： 从 build.gradle 文件中删除以下代码块：
externalNativeBuild {
cmake {
path "src/main/cpp/CMakeLists.txt"
}
}
@rpurohit 几乎是正确的，Clang 无法正常工作。但是要更改编译器，您需要更改 build.gradle，在我的 build.gradle 中是第 12 行：
apply plugin: 'com.android.application'
1 android {
2 compileSdkVersion 25
3 buildToolsVersion '25.0.2'
4 defaultConfig {
5 applicationId 'com.example.hellojni'
6 minSdkVersion 23
7 targetSdkVersion 25
8 versionCode 1
9 versionName "1.0"
10 externalNativeBuild {
11 cmake {
12 arguments '-DANDROID_TOOLCHAIN=clang' --> gcc
}
}
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
externalNativeBuild {
cmake {
path "src/main/cpp/CMakeLists.txt"
}
}
productFlavors {
arm7 {
// in the future, ndk.abiFilter might also work
ndk {
abiFilter 'armeabi-v7a'
}
}
arm8 {
ndk {
abiFilters 'arm64-v8a'
}
}
arm {
ndk {
abiFilter 'armeabi'
}
}
x86 {
ndk {
abiFilter 'x86'
}
}
x86_64 {
ndk {
abiFilter 'x86_64'
}
}
mips {
ndk {
abiFilters 'mips', 'mips64'
}
}
universal {
ndk {
abiFilters 'mips', 'mips64', 'x86', 'x86_64'
}
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:25.2.0'
compile 'com.android.support.constraint:constraint-layout:1.0.1'
}
我建议暂时使用 GCC 而不是 clang，因为 clang 仍然不包含所有功能。您可以通过执行以下操作来更改编译器：
set(CMAKE_C_COMPILER /path-to-ndk/toolchains/aarch64-linux-android-4.9/prebuilt/darwin-x86_64/bin/aarch64-linux-android-gcc)
但是，darwin-x86_64 目录仅在您使用 Mac 时存在。如果您在其他平台上，只需使用预建文件夹下的目录即可。
遇到这个问题是因为我设置错了
native-lib.cppadd_library(native-lib SHARED native-lib.cpp)
到
add_library(native-lib SHARED src/main/jni/native-lib.cpp)
又成功了。
顺便说一下，这是我项目结构的一部分。
CMakeLists.txt
src
|__main
|___jni
|___native-lib.cpp
如果以前的答案对您不起作用，就像我遇到的那样，请尝试修复 cmake 和 ndk 的 bin 文件夹中的权限。在我的例子中：C: ndroid-sd