multiproject gradle build error:包不存在

Question

使用gradle构建多项目时遇到一些问题.我读了所有类似的问题但没有任何帮助.我的项目结构如下:

App/
    settings.gradle
    app/
        build.gradle
    libraries/
        Core(git submodule)/
            Core/
                build.gradle
            libraries/
                ZBarLibrary/
                    build.gradle
            settings.gradle

应用/ settings.gradle

include ':App', ':libraries:Core', ':libraries:ZBarLibrary'
project(':libraries:Core').projectDir = new File(settingsDir, 'libraries/Core/Core')
project(':libraries:ZBarLibrary').projectDir = new File(settingsDir, 'libraries/Core/libraries/ZBarLibrary')

应用程序/应用/的build.gradle

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.5.+'
    }
}
apply plugin: 'android'

repositories {
    mavenCentral()
}

android {
    compileSdkVersion 17
    buildToolsVersion "17.0.0"

    defaultConfig {
        minSdkVersion 14
        targetSdkVersion 16
    }
}

dependencies {
    compile 'com.android.support:support-v4:18.0.0'
    compile project(':libraries:Core')
}

应用程序/库/核心/核心/的build.gradle

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.5.+'
    }
}
apply plugin: 'android'

repositories {
    mavenCentral()
}

dependencies {
    instrumentTestCompile "junit:junit:4.5+"
    compile project(':libraries:ZBarLibrary')
    compile fileTree(dir: 'libs', include: '*.jar')

}

android {
    compileSdkVersion 17
    buildToolsVersion "17.0.0"

    defaultConfig {
        minSdkVersion 14
        targetSdkVersion 16
    }
}

应用程序/库/核心/库/ ZBarLibrary /的build.gradle

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.5.+'
    }
}
apply plugin: 'android-library'

repositories {
    mavenCentral()
}

dependencies {
    compile fileTree(dir: 'libs', include: '*.jar')
}

android {
    compileSdkVersion 17
    buildToolsVersion "17.0.0"

    defaultConfig {
        minSdkVersion 14
        targetSdkVersion 16
    }

    sourceSets {
        main {
            manifest.srcFile 'AndroidManifest.xml'
            java.srcDirs = ['src']
            resources.srcDirs = ['src']
            aidl.srcDirs = ['src']
            renderscript.srcDirs = ['src']
            res.srcDirs = ['res']
            assets.srcDirs = ['assets']
        }
    }
}

App目录中的命令"gradle build"生成错误:"package com ...不存在".这个包在app模块中使用,但它可以在App/libraries/Core/Core/src/main/java中找到.你可以帮帮我吗？

Answer 1

你的app模块的build.gradle应该包含(除其他外)

apply plugin: 'com.android.application'
dependencies {
    compile project(':my_library_module')
}

您的库模块的build.gradle文件应该包含

apply plugin: 'com.android.library'

Answer 2

我对 Gradle 6.4（多模块项目）和 Java 13 也有同样的问题

项目结构：

app:
    backend:
        /src
        build.gradle
    base:
        /src
        build.gradle
    build.gradle
    settings.gradle

主类包含在base/build.gradle中，并且base-module也依赖于backend-module。

解决方案：有必要将以下行添加到backend/build.gradle

jar {
    enabled = true
}
bootJar {
    enabled = false
}

并检查base/build.gradle是否具有以下行：

bootJar {
    archivesBaseName = 'base'
}
dependencies {
    implementation project(":backend")
}

为了以防万一，对于 gradle 的新手来说，请放置settings.gradle 文件的列表：

rootProject.name = 'app'
include 'backend', 'base'

Answer 3

如果您使用 Core 作为库，您应该更改apply plugin: 'android'为apply plugin: 'android-library'App /libraries/Core/Core/build.gradle