Kotlin DSL C++项目引入OpenCV异常处理

现象

kotlin DSL(build.rgadle.kts)项目引入openCV sdk 编译提示Plugin [id: 'com.android.application', version: '8.2.1'...错误

Plugin [id: 'com.android.application', version: '8.2.1', apply: false] was not found in any of the following sources:

* Try:
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
> Get more help at https://help.gradle.org.

* Exception is:
org.gradle.api.plugins.UnknownPluginException: Plugin [id: 'com.android.application', version: '8.2.1', apply: false] was not found in any of the following sources:

- Gradle Core Plugins (plugin is not in 'org.gradle' namespace)
- Plugin Repositories (could not resolve plugin artifact 'com.android.application:com.android.application.gradle.plugin:8.2.1')
  Searched in the following repositories:
    Gradle Central Plugin Repository ...

原因

openCV sdk 中使用的是Groovy DSL(build.gradle)

解决方案

将项目中settings.gradle文件中内容拷贝到settings.gradle.kts后将之删除
将openCV sdk Module 下build.gradle改成build.gradle.kts

附:build.gradle.kts

import com.android.build.api.dsl.JniLibsPackaging

// This file is part of OpenCV project.
// It is subject to the license terms in the LICENSE file found in the top-level directory
// of this distribution and at http://opencv.org/license.html.

//
// Notes about integration OpenCV into existed Android Studio application project are below (application 'app' module should exist).
//
// This file is located in /sdk directory (near 'etc', 'java', 'native' subdirectories)
//
// Add module into Android Studio application project:
//
// - Android Studio way:
//   (will copy almost all OpenCV Android SDK into your project, ~200Mb)
//
//   Import module: Menu -> "File" -> "New" -> "Module" -> "Import Gradle project":
//   Source directory: select this "sdk" directory
//   Module name: ":opencv"
//
// - or attach library module from OpenCV Android SDK
//   (without copying into application project directory, allow to share the same module between projects)
//
//   Edit "settings.gradle" and add these lines:
//
//   def opencvsdk=''
//   // You can put declaration above into gradle.properties file instead (including file in HOME directory),
//   // but without 'def' and apostrophe symbols ('): opencvsdk=
//   include ':opencv'
//   project(':opencv').projectDir = new File(opencvsdk + '/sdk')
//
//
//
// Add dependency into application module:
//
// - Android Studio way:
//   "Open Module Settings" (F4) -> "Dependencies" tab
//
// - or add "project(':opencv')" dependency into app/build.gradle:
//
//   dependencies {
//       implementation fileTree(dir: 'libs', include: ['*.jar'])
//       ...
//       implementation project(':opencv')
//   }
//
//
//
// Load OpenCV native library before using:
//
// - avoid using of "OpenCVLoader.initAsync()" approach - it is deprecated
//   It may load library with different version (from OpenCV Android Manager, which is installed separatelly on device)
//
// - use "System.loadLibrary("opencv_java4")" or "OpenCVLoader.initDebug()"
//   TODO: Add accurate API to load OpenCV native library
//
//
//
// Native C++ support (necessary to use OpenCV in native code of application only):
//
// - Use find_package() in app/CMakeLists.txt:
//
//   find_package(OpenCV 4.7 REQUIRED java)
//   ...
//   target_link_libraries(native-lib ${OpenCV_LIBRARIES})
//
// - Add "OpenCV_DIR" and enable C++ exceptions/RTTI support via app/build.gradle
//   Documentation about CMake options: https://developer.android.com/ndk/guides/cmake.html
//
//   defaultConfig {
//       ...
//       externalNativeBuild {
//           cmake {
//               cppFlags "-std=c++11 -frtti -fexceptions"
//               arguments "-DOpenCV_DIR=" + opencvsdk + "/sdk/native/jni" // , "-DANDROID_ARM_NEON=TRUE"
//           }
//       }
//   }
//
// - (optional) Limit/filter ABIs to build ('android' scope of 'app/build.gradle'):
//   Useful information: https://developer.android.com/studio/build/gradle-tips.html (Configure separate APKs per ABI)
//
//   splits {
//       abi {
//           enable true
//           universalApk false
//           reset()
//           include 'armeabi-v7a' // , 'x86', 'x86_64', 'arm64-v8a'
//       }
//   }
//

plugins {
    id("com.android.library")
    id("org.jetbrains.kotlin.android")
}


val openCVersionName = "4.7.0-dev"
val openCVersionCode = ((4 * 100 + 7) * 100 + 0) * 10 + 0

println("OpenCV: " + openCVersionName + " " + project.buildscript.sourceFile)

android {
    namespace = "org.opencv"
    compileSdk = 34

    defaultConfig {
        minSdk = 24 

        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
        externalNativeBuild {
            cmake {
                arguments("-DANDROID_STL=c++_shared")
                targets("opencv_jni_shared")
            }
        }
    }

    buildTypes {
        debug {
            packaging { 
                jniLibs{
                    keepDebugSymbols.add("**/*.so")
                }
            } 
        }
        release {
            packaging {
                jniLibs{
                    keepDebugSymbols.add("**/*.so")
                }
            }
            isMinifyEnabled = false
            proguardFiles(
                getDefaultProguardFile("proguard-android.txt"),
                "proguard-rules.pro"
            )
        }
    }

    sourceSets {
        getByName("main") {
            jniLibs.srcDirs("native/libs")
            java.srcDirs("java/src")
            aidl.srcDirs("java/src")
            res.srcDirs("java/res")
            manifest.srcFile("java/AndroidManifest.xml")
        }
    }

    externalNativeBuild {
        cmake {
            path = file("${project.projectDir}/libcxx_helper/CMakeLists.txt")
        }
    }
}

dependencies {
}