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在 Android 中使用 GreenDao，由于 GreenDao 现在不维护，所以更新到新版本的 Gradle 经常出问题，在这记录一些升级遇到的问题，并且记录解决方案。

博主博客

• https://blog.uso6.com
• https://blog.csdn.net/dxk539687357

一、‘:app:greendao’ without declaring an explicit or implicit dependency.

1.1 Gradle 8.0.2

从 Gradle 7.x 升级到 Gradle 8.x 会遇到以下错误

org.gradle.internal.execution.WorkValidationException: Some problems were found with the configuration of task ':app:greendao' (type 'DefaultTask').- Gradle detected a problem with the following location: '/Users/nukix/AndroidStudioProjects/Demo/app/src/main/java'.Reason: Task ':app:compileOfficialDebugKotlin' uses this output of task ':app:greendao' without declaring an explicit or implicit dependency. This can lead to incorrect results being produced, depending on what order the tasks are executed.Possible solutions:1. Declare task ':app:greendao' as an input of ':app:compileOfficialDebugKotlin'.2. Declare an explicit dependency on ':app:greendao' from ':app:compileOfficialDebugKotlin' using Task#dependsOn.3. Declare an explicit dependency on ':app:greendao' from ':app:compileOfficialDebugKotlin' using Task#mustRunAfter.Please refer to https://docs.gradle.org/8.0.2/userguide/validation_problems.html#implicit_dependency for more details about this problem.

groovy

修改项目根目录 build.gradle 为以下内容

buildscript {repositories {google()mavenCentral()}dependencies {classpath 'com.android.tools.build:gradle:8.0.2'classpath 'org.greenrobot:greendao-gradle-plugin:3.3.1'}
}

修改 app 模块下的 build.grade 为以下内容

plugins {id 'com.android.application'id 'org.jetbrains.kotlin.android'id 'kotlin-kapt'id 'org.greenrobot.greendao'
}greendao {schemaVersion 1daoPackage 'com.uso6.greendao'targetGenDir 'src/main/java'
}tasks.whenTaskAdded { task ->if (task.name.matches("compile\w*Kotlin")) {task.dependsOn('greendao')}
}dependencies {implementation 'org.greenrobot:greendao:3.3.0'
}

kotlin

修改项目根目录 build.gradle.kts 为以下内容

buildscript {val agp_version: String by extra("8.1.2")repositories {gradlePluginPortal()}dependencies {...classpath("org.greenrobot:greendao-gradle-plugin:3.3.1")}
}plugins {id("com.android.application") version("8.0.2") apply falseid("com.android.library") version("7.4.1") apply falseid("org.jetbrains.kotlin.android") version("1.8.10") apply false
}

修改 app 模块下的 build.grade.kts 为以下内容

plugins {id("com.android.application")id("org.jetbrains.kotlin.android")id("kotlin-kapt") id("org.greenrobot.greendao")
}android {...greendao {schemaVersion = 1daoPackage = "com.uso6.greendao"targetGenDir = file("src/main/java")}tasks.configureEach {if (this.name.matches(Regex("compile\\w*Kotlin"))) {this.dependsOn("greendao")}}
}dependencies {implementation("org.greenrobot:greendao:3.3.0")
}

1.2 Gradle 8.12.1

升级到 8.12.1 会遇到以下错误（不一定是 8.12.1 版本，只是我在这个版本遇到了）

org.gradle.internal.execution.WorkValidationException: A problem was found with the configuration of task ':app:kaptGenerateStubsDebugKotlin' (type 'KaptGenerateStubsTask').- Gradle detected a problem with the following location: '/Users/nukix/AndroidStudioProjects/Demo/app/src/main/java'.Reason: Task ':app:kaptGenerateStubsDebugKotlin' uses this output of task ':app:greendao' without declaring an explicit or implicit dependency. This can lead to incorrect results being produced, depending on what order the tasks are executed.Possible solutions:1. Declare task ':app:greendao' as an input of ':app:kaptGenerateStubsDebugKotlin'.2. Declare an explicit dependency on ':app:greendao' from ':app:kaptGenerateStubsDebugKotlin' using Task#dependsOn.3. Declare an explicit dependency on ':app:greendao' from ':app:kaptGenerateStubsDebugKotlin' using Task#mustRunAfter.For more information, please refer to https://docs.gradle.org/8.12.1/userguide/validation_problems.html#implicit_dependency in the Gradle documentation.

这个问题跟上面的几乎一样，所以增加一个判断条件即可。

groovy

修改 app 模块下的 build.grade 为以下内容

tasks.whenTaskAdded { task ->if (task.name.matches("compile\w*Kotlin") || task.name.matches("kapt\\w*Kotlin")) {task.dependsOn('greendao')}
}

kotlin

修改 app 模块下的 build.grade.kts 为以下内容

tasks.configureEach {if (this.name.matches(Regex("compile\\w*Kotlin")) || this.name.matches(Regex("kapt\\w*Kotlin"))) {this.dependsOn("greendao")}
}

1.3 在 GitHub issues 里面有个老哥给出来的答案更完整，可以直接使用。

groovy

tasks.whenTaskAdded { task ->if (task.name.matches("\\w*compile\\w*Kotlin") || task.name.matches("\\w*kaptGenerateStubs\\w*Kotlin")|| task.name.matches("\\w*kapt\\w*Kotlin")) {task.dependsOn('greendao')}
}

kotlin

tasks.configureEach {if (this.name.matches(Regex("\\w*compile\\w*Kotlin")) || this.name.matches(Regex("\\w*kaptGenerateStubs\\w*Kotlin")) || this.name.matches(Regex("\\w*kapt\\w*Kotlin"))) {this.dependsOn("greendao")}
}

参考文献

• The project encountered errors after updating Gradle Version 7.6.1 to Gradle Version 8.0+