android開發里跳過的坑-AS導入NDK工程提示錯誤 No such property: sdkHandler for class: com.android.build.gradle.LibraryPlugin

接到一個NDK工程需要調試，導入后發現總是提示錯誤

Error:(37, 1) A problem occurred evaluating project ':libuvccamera'.
> No such property: sdkHandler for class: com.android.build.gradle.LibraryPlugin

百度上各種說法，有說要降低gadle版本，有說要在環境變量里配置ANDROID_NDK的路徑，試驗了都不行，最后參考別人NDK gradle文件修改如下：

未修改之前：

task ndkBuild(type: Exec, description: 'Compile JNI source via NDK') {

   println('executing ndkBuild')

   def ndkBuildingDir = project.plugins.findPlugin('com.android.library').sdkHandler.getNdkFolder().absolutePath

   def ndkBuildPath = ndkBuildingDir

  if (Os.isFamily(Os.FAMILY_WINDOWS)){

    ndkBuildPath = ndkBuildingDir + '/ndk-build.cmd'

 } else {
 ndkBuildPath = ndkBuildingDir + '/ndk-build'
 }
 commandLine ndkBuildPath, '-j8', '-C', file('src/main').absolutePath
}

可修改為

task ndkBuild(type: Exec, description: 'Compile JNI source via NDK') {
   println('executing ndkBuild')
   def ndkBuildingDir = android.ndkDirectory
   if (Os.isFamily(Os.FAMILY_WINDOWS)) {
      ndkBuildingDir = "$ndkBuildingDir/ndk-build.cmd"
   } else {
      ndkBuildingDir = "$ndkBuildingDir/ndk-build"
   }
   commandLine ndkBuildingDir, '-j8', '-C', file('src/main').absolutePath
}

或者修改為
task ndkBuild(type: Exec, description: 'Compile JNI source via NDK') { 
 println('executing ndkBuild')

 //def ndkBuildingDir = project.plugins.findPlugin('com.android.library').sdkHandler.getNdkFolder().absolutePath
 //def ndkBuildPath = ndkBuildingDir
 def ndkBuildPath = android.ndkDirectory
 if (Os.isFamily(Os.FAMILY_WINDOWS)) {
 commandLine "$ndkBuildPath/ndk-build.cmd",
 '-C', file('src/main').absolutePath, // Change src/main/jni the relative path to your jni source
 '-j', Runtime.runtime.availableProcessors(),
 'all',
 'NDK_DEBUG=1'
 } else {
　　 commandLine "$ndkBuildPath/ndk-build",

            '-C', file('src/main').absolutePath, // Change src/main/jni the relative path to your jni source
            '-j', Runtime.runtime.availableProcessors(),
            'all',
            'NDK_DEBUG=1'

   }

}