Android Studio 2.1将字节码转换为dex时出错

问题描述

自从我将android studio从2.0更新为2.1后，我收到以下错误。

I am getting the following error since I updated the android studio from 2.0 to 2.1.

原因：Dex无法解析版本52字节的代码。这是由使用Java 8或更高版本编译的
库依赖项引起的。如果
你在库子模块中使用'java'gradle插件，则将
targetCompatibility ='1.7'ourceCompatibility ='1.7'添加到
子模块的build.gradle文件中。

Cause: Dex cannot parse version 52 byte code. This is caused by library dependencies that have been compiled using Java 8 or above. If you are using the 'java' gradle plugin in a library submodule add targetCompatibility = '1.7' sourceCompatibility = '1.7' to that submodule's build.gradle file.

我尝试在build.gradle中添加以下代码段，但问题仍然存在

I tried adding the following snippet in build.gradle, but still the issue persists

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_7
        targetCompatibility JavaVersion.VERSION_1_7
    }

我看到一些与此类似的问题，但两个问题都没有得到解答。任何人都可以帮我解决这个问题吗？在此先感谢。

I saw some of the questions similar to this, but neither of the questions answered. Can anyone help me to solve this? Thanks in advance.

推荐答案

尝试

allprojects {
    tasks.withType(JavaCompile) {
        sourceCompatibility = "1.7"
        targetCompatibility = "1.7"
    }
}

主要 build.gradle 文件中的

in the main build.gradle file

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