"路径和baseDir都不是null或空字符串." 在Android Studio 0.2.9中导入gradle项目时出错

Question

注意:我无法发布链接,所以我想你需要去这里跟随参考.对不起,不是我的规矩.

尝试将项目导入Android Studio 0.2.9时出现以下错误:

Could not execute build using Gradle distribution 
'http://services.gradle.org/distributions-snapshots/
gradle-1.8-20130830160653+0000-bin.zip'.
A problem occurred configuring project ':library'.
A problem occurred configuring project ':library'.
Failed to notify project evaluation listener.
Neither path nor baseDir may be null or empty 
string. path='' basedir='<projects folder>/
drag-sort-listview/library'

Consult IDE log for more details (Help | Show Log)

该项目最初是一个Maven项目(1).我在Eclipse ADT中打开它,/librabry/build.gradle按照(2)中的说明生成一个文件.

生成的Eclipse ADT build.gradle看起来像:

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.4'
    }
}
apply plugin: 'android-library'

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

android {
    compileSdkVersion 7
    buildToolsVersion "17.0.0"

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

        instrumentTest.setRoot('tests')
    }
}

我不得不改变第6行

classpath 'com.android.tools.build:gradle:0.4'

至

classpath 'com.android.tools.build:gradle:0.5+'

让Android Studio停止说版本不匹配.我还添加了一个/settings.gradle包含的文件

include ':library'

和/local.properties包含内容的文件

# This file is automatically generated by Android Studio.
# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
#
# This file must *NOT* be checked into Version Control Systems,
# as it contains information specific to your local configuration.

# Location of the SDK. This is only used by Gradle.
# For customization when using a Version Control System, please read the
# header note.
sdk.dir=/Applications/Android Studio.app/sdk

然后,我试图/settings.gradle通过在'文件|中选择它来导入文件 导入项目...'对话框.我选中了"使用自动导入"并在对话框中选择了"使用带有验证的gradle包装器"选项(3).完整的idea.log条目可以在(4)查看.

任何帮助将不胜感激,谢谢.

Answer 1

如果您正在使用,这将发生 Environment Variables:

android {
signingConfigs {
    release {
        storeFile file(RELEASE_STORE_FILE)
        storePassword RELEASE_STORE_PASSWORD
        keyAlias RELEASE_KEY_ALIAS
        keyPassword RELEASE_KEY_PASSWORD
    }
}

您还没有在位于项目根目录的gradle.properties文件中定义这些变量.

要解决此问题,请确保定义了变量,这是我的gradle.properties文件中的示例:

RELEASE_STORE_FILE=app_keystore.jks
RELEASE_STORE_PASSWORD=password
RELEASE_KEY_ALIAS=MyAppKey
RELEASE_KEY_PASSWORD=password

Answer 2

（OP 在问题编辑中回答。转换为社区 wiki 答案。请参阅没有答案的问题，但问题在评论中解决（或在聊天中扩展））

OP 写道：

好的，解决了。问题在于android.sourceSetsin下的空列表build.gradle，我将它们注释掉以解决该错误。这是我目前的build.gradle：

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.4'
    }
}
apply plugin: 'android-library'

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

android {
    compileSdkVersion 7
    buildToolsVersion "17.0.0"

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

        instrumentTest.setRoot('tests')
    }
}

希望对大家有帮助。