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最新推荐文章于 2021-06-01 03:41:31 发布

liunian823

最新推荐文章于 2021-06-01 03:41:31 发布

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分类专栏： android开发文章标签： native command

本文链接：https://blog.youkuaiyun.com/liunian823/article/details/54925336

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本文介绍了解决在Windows环境下使用Gradle构建带有JNI的Android项目时遇到的错误：“A problem occurred starting process ‘command ‘C:NDK/ndk-build’”。通过调整构建脚本中的命令行路径指定方式，成功解决了构建失败的问题。

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Error:Execution failed for task ‘:app:buildNative’. > A problem occurred starting process ‘command ‘C:\NDK/ndk-build”

运行有native库调用的项目，出现该错，原build文件中，task代码如下

task buildNative(type: Exec, description: 'Compile JNI source via NDK') {
        def ndkDir = android.ndkDirectory
        commandLine "$ndkDir/ndk-build",
                '-C', file('src/main/jni').absolutePath, // Change src/main/jni the relative path to your jni source
                '-j', Runtime.runtime.availableProcessors(),
                'all',
                'NDK_DEBUG=0'
    }

    task cleanNative(type: Exec, description: 'Clean JNI object files') {
        def ndkDir = android.ndkDirectory
        commandLine "$ndkDir/ndk-build",
                '-C', file('src/main/jni').absolutePath, // Change src/main/jni the relative path to your jni source
                'clean'
    }

因为windows操作环境下， commandLine “ $ndkDir/ndk-build",这句指令是错误的，需要加上后缀为：commandLine "$ ndkDir/ndk-build.cmd”,修改后代码如下：

task buildNative(type: Exec, description: 'Compile JNI source via NDK') {
        def ndkDir = android.ndkDirectory
        commandLine "$ndkDir/ndk-build.cmd",
                '-C', file('src/main/jni').absolutePath, // Change src/main/jni the relative path to your jni source
                '-j', Runtime.runtime.availableProcessors(),
                'all',
                'NDK_DEBUG=0'
    }

    task cleanNative(type: Exec, description: 'Clean JNI object files') {
        def ndkDir = android.ndkDirectory
        commandLine "$ndkDir/ndk-build.cmd",
                '-C', file('src/main/jni').absolutePath, // Change src/main/jni the relative path to your jni source
                'clean'
    }