升级AS3.0 gradle报错

最新推荐文章于 2025-09-12 18:08:49 发布

转载最新推荐文章于 2025-09-12 18:08:49 发布 · 110 阅读

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原文链接：https://my.oschina.net/wlsblogs/blog/1611411

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本文介绍了解决Android Studio 3.0升级后出现的Gradle编译错误的方法，包括outputFile变成只读属性的问题及annotation processors必须明确声明的问题，并提供了相应的配置修改方案。

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今天升级了AS3.0以后，在项目编译的时候发现Gradle中报错了，错误如下：

问题一（applicationVariants.all可以直接注掉）：

Error:(60, 0) Cannot set the value of read-only property 'outputFile' for ApkVariantOutputImpl_Decorated{apkData=Main{type=MAIN, fullName=xiaomiRelease, filters=[]}} of type com.android.build.gradle.internal.api.ApkVariantOutputImpl.

经过一番折腾，网上找大牛的解读，弄明白了output.outputFile变成了只读属性，不能再往里面写东西了，以下是3.0之前的配置：

applicationVariants.all { variant ->    //批量修改Apk名字

    variant.outputs.each { output ->

        def outputFile = output.outputFile

        if (outputFile != null && outputFile.name.endsWith('.apk') && 'release'.equals(variant.buildType.name)) {

            def fileName = outputFile.name.replace("${variant.flavorName}", "V${defaultConfig.versionName}-${variant.flavorName}")

            fileName = fileName.replace('.apk', "-${buildTime()}.apk")

            output.outputFile = new File(outputFile.parent, fileName)

        }

    }

}

下面是经过修改之后3.0里面批量修改APK名字的配置：

applicationVariants.all { variant ->
variant.outputs.each { output ->
output.outputFileName = new File(output.outputFile.parent, output.outputFile.name.replace("app-release.apk", "Your_name.apk"))
}
}

问题二：

Error:Execution failed for task ':app:javaPreCompileDebug'.
> Annotation processors must be explicitly declared now. The following dependencies on the compile classpath are found to contain annotation processor. Please add them to the annotationProcessor configuration.
- butterknife-6.0.0.jar (com.jakewharton:butterknife:6.0.0)
Alternatively, set android.defaultConfig.javaCompileOptions.annotationProcessorOptions.includeCompileClasspath = true to continue with previous behavior. Note that this option is deprecated and will be removed in the future.

See https://developer.android.com/r/tools/annotation-processor-error-message.html for more details.

在app的build中
android {
...
defaultConfig {
...
//添加如下配置就OK了
javaCompileOptions { annotationProcessorOptions { includeCompileClasspath = true } }
}
...
}

转载于:https://my.oschina.net/wlsblogs/blog/1611411