Android Studio 库“错误:包不存在" [英] Android Studio library "error: package does not exist"

问题描述

我已经创建了 Android 库作为 Android Studio 模块.添加为我的根模块的依赖项.编码时，我可以从库包中导入任何类，但是当我尝试运行应用程序时，出现错误 package some.mylibrary.project 不存在.

I have created Android library as Android Studio module. Added as dependency to my root module. While coding I can import any class from library package but while I'm trying run the application I'm getting an error package some.mylibrary.project does not exist.

build.gradle 根模块

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.12.+'
    }
}
apply plugin: 'com.android.application'

dependencies {
    compile fileTree(dir: 'libs', include: '*.jar')
    compile 'com.android.support:appcompat-v7:20.+'
    compile 'com.google.android.gms:play-services:5.+'
    compile project(':libraries:mylibrary')
}

android {
    compileSdkVersion 17
    buildToolsVersion "20.0.0"

    lintOptions {
        disable 'InvalidPackage'
        checkReleaseBuilds false
        abortOnError false
    }

    ***
}

build.gradle 库模块

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.12.+'
    }
}

apply plugin: 'com.android.application'
apply plugin: 'idea'

android {
    compileSdkVersion 17
    buildToolsVersion "20.0.0"

     *****    
}

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

settings.gradle

include ':libraries:mylibrary'

附言不得不提一下，该项目是从Eclipse IDE导出的，所以项目结构与默认不同.

P.S. I have to mention that the project was exported from Eclipse IDE so the project structure is different from default one.

推荐答案

For Android Studio 2.2.2

是的，在库模块中，不能使用模块定义中的apply plugin: com.android.application 语句，是的，使用apply plugin: com.android.library 代替.(仍在 lib 模块中)

Yes, in library module, it can't use the apply plugin: com.android.application statement in the module definition, yes, use apply plugin: com.android.library instead. (still in lib module)

但是你必须做到以下几点:

But then you have to do the following:

1. 在 Gradle 文件中为两个模块公开相同的 SDK 版本.
2. 右键单击您的项目app"模块文件夹，然后单击 -> 打开模块设置
3. 点击依赖项"标签
4. 点击 + 号添加新的依赖项并选择模块依赖项"
5. 查找您需要的库并添加它.

同时在命名你的 lib 模块时避免大写.

Also while naming your lib module avoid capitals.

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