Android Studio 签名 APK ':app:transformClassesAndResourcesWithProguardForRelease' [英] Android Studio Signed APK ':app:transformClassesAndResourcesWithProguardForRelease'

问题描述

当我尝试在 Android Studio 中生成签名时，出现以下错误:

When I try to generate signed in Android Studio, I've got the following error :

错误:任务:app:transformClassesAndResourcesWithProguardForRelease"的执行失败.java.io.IOException: 请先更正以上警告.

Error:Execution failed for task ':app:transformClassesAndResourcesWithProguardForRelease'. java.io.IOException: Please correct the above warnings first.

已经做了一些研究并发现例如:

Already make some research and find that for example :

错误:任务':android:transformClassesAndResourcesWithProguardForRelease'执行失败

我听从了建议，但没有奏效.因此，我尝试将我的 buildToolsVersion 更新为 23.0.2.

I followed the advice, it didn't works. So, I tried to update my buildToolsVersion to 23.0.2.

也没有用.

它仅在我将 minifyEnabled 修改为 false 时才有效，而我不想这样做.

It's works only when I modify minifyEnabled to false, and I don't want to.

你能给我一个曲目吗?

推荐答案

尝试执行干净构建 (Build > Clean Project) 并重新构建.

Try performing a clean build (Build > Clean Project) and buliding again.

如果这不起作用，很可能 Proguard 正在删除您应用中的一些重要类和/或库.查看日志中错误消息上方生成的警告.您需要向 proguard-rules.pro 文件中添加规则以保留必要的类.以下是保留 Butterknife 库所需规则的示例.

If that doesn't work, it's likely Proguard is removing some important classes and/or libraries in your app. Take a look at the warnings generated above the error message in the log. You'll need to add rules to your proguard-rules.pro file to keep the necessary classes. Here is an example of the rules required to keep the Butterknife library.

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