Flutter构建报错：Plugin [id: 'kotlin-android'] was not found 求助

报错信息 #

FAILURE: Build failed with an exception.

* Where:
Build file 'C:\Users\MOTAP ERP\StudioProjects\restaurant\android\app\build.gradle' line: 3

* What went wrong:
Plugin [id: 'kotlin-android'] was not found in any of the following sources:

- Gradle Core Plugins (not a core plugin)
- Included Builds (None of the included builds contain this plugin)
- Plugin Repositories (plugin dependency must include a version number for this source)

* Try:
> Run with --stacktrace option to get the stack trace.
> 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

BUILD FAILED in 877ms
Exception: Gradle task assembleDebug failed with exit code 1

已确认Kotlin插件已安装，尝试过常规方案无效，附上相关配置文件：

app/build.gradle 原内容 #

plugins {
    id "com.android.application"
    id "kotlin-android"
    id "dev.flutter.flutter-gradle-plugin"
}

    kotlinOptions {
        jvmTarget = '1.8'
    }

    sourceSets {
        main.java.srcDirs += 'src/main/kotlin'
    }
}

flutter {
    source '../..'
}

dependencies {
    implementation 'androidx.multidex:multidex:2.0.1'
    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
}

android/build.gradle 原内容 #

buildscript {

        ext.kotlin_version = "1.7.10"

    repositories {
        google()
        mavenCentral()


        dependencies {
            classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        }
    }

    allprojects {
        repositories {
            google()
            mavenCentral()
        }
    }

问题分析与解决 #

从配置文件看，核心问题是Gradle配置文件存在语法结构错误，导致插件无法被正确识别加载：

1. 修正 android/build.gradle #

原文件中dependencies块被错误嵌套在repositories块内部，调整结构并补充必要的Android Gradle插件依赖：

buildscript {
    ext.kotlin_version = "1.7.10"
    repositories {
        google()
        mavenCentral()
    }
    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        classpath "com.android.tools.build:gradle:7.4.2" // 版本需与本地Gradle匹配，可按需调整
    }
}

allprojects {
    repositories {
        google()
        mavenCentral()
    }
}

2. 修正 app/build.gradle #

原文件缺失android代码块，且多了一个多余的闭合}，调整后：

plugins {
    id "com.android.application"
    id "kotlin-android"
    id "dev.flutter.flutter-gradle-plugin"
}

android {
    kotlinOptions {
        jvmTarget = '1.8'
    }

    sourceSets {
        main.java.srcDirs += 'src/main/kotlin'
    }
}

flutter {
    source '../..'
}

dependencies {
    implementation 'androidx.multidex:multidex:2.0.1'
    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
}

后续操作 #

• 检查Android Studio的Kotlin插件版本是否与配置中kotlin_version（1.7.10）匹配，可在File > Settings > Plugins > Kotlin查看
• 执行flutter clean清除缓存，再重新运行flutter run

内容的提问来源于stack exchange，提问作者fcozsargin