在 Android Studio 2 中构建时出现“EnclosureMethod”错误

Question

当我在 Android Studio 2 中运行应用程序时，我遇到了构建错误。当我使用早期版本的 Android Studio 时，这些错误不存在。

Error:warning: Ignoring InnerClasses attribute for an anonymous inner class
Error:(com.squareup.haha.guava.base.Joiner$1) that doesn't come with an
Error:associated EnclosingMethod attribute. This class was probably produced by a
Error:compiler that did not target the modern .class file format. The recommended
Error:solution is to recompile the class from source, using an up-to-date compiler
Error:and without specifying any "-target" type options. The consequence of ignoring
Error:this warning is that reflective operations on this class will incorrectly
Error:indicate that it is *not* an inner class.
Error:warning: Ignoring InnerClasses attribute for an anonymous inner class
Error:(com.squareup.haha.guava.collect.Iterables$2) that doesn't come with an
Error:associated EnclosingMethod attribute. This class was probably produced by a
Error:compiler that did not target the modern .class file format. The recommended
Error:solution is to recompile the class from source, using an up-to-date compiler
Error:and without specifying any "-target" type options. The consequence of ignoring
Error:this warning is that reflective operations on this class will incorrectly
Error:indicate that it is *not* an inner class.
Error:warning: Ignoring InnerClasses attribute for an anonymous inner class
Error:(com.squareup.haha.guava.collect.Iterables$3) that doesn't come with an
Error:associated EnclosingMethod attribute. This class was probably produced by a
Error:compiler that did not target the modern .class file format. The recommended
Error:solution is to recompile the class from source, using an up-to-date compiler
Error:and without specifying any "-target" type options. The consequence of ignoring
Error:this warning is that reflective operations on this class will incorrectly
Error:indicate that it is *not* an inner class.

这些错误是什么以及如何解决？此外，apk 构建良好，应用程序也运行良好。

Answer 1

2016/09/19 更新

这在 LeakCanary 1.4 中已修复，因此只需升级即可修复它，而无需与 haha 的替代版本混淆。

debugCompile 'com.squareup.leakcanary:leakcanary-android:1.4'

以前

这些警告是由haha:2.0.2 引起的，它是leakcanary-android:1.4-beta2 的依赖项。

它已在 haha:2.0.3 中修复，因此您可以通过在依赖项中显式使用较新版本来修复它。为每个要添加 leakcanary 依赖项的风味添加此行。你不需要为leakcanary-android-no-op 添加它，因为它没有依赖关系。

debugCompile 'com.squareup.haha:haha:2.0.3'

Answer 2

添加

-keepattributes EnclosingMethod

到 proguard 的配置文件（在我的例子中，proguard.cfg）似乎已经解决了这个问题。

Answer 3

我遇到了同样的错误。似乎leakcanary（在我的情况下）存在一些问题。我尝试在 proguard 文件中进行更改。

-dontwarn com.squareup.haha.guava.**
-dontwarn com.squareup.haha.perflib.**
-dontwarn com.squareup.haha.trove.**
-dontwarn com.squareup.leakcanary.**
-keep class com.squareup.haha.** { *; }
-keep class com.squareup.leakcanary.** { *; }

# Marshmallow removed Notification.setLatestEventInfo()
-dontwarn android.app.Notification

我不再遇到这些问题了。这是link

Answer 4

我通过向我的 build.gradle 添加以下依赖项解决了这个问题：

testCompile "com.squareup.leakcanary:leakcanary-android-no-op:1.4-beta2"

这里是链接：https://github.com/square/leakcanary/issues/491