android - Android Studio 中库的 NoClassDefFoundError

Question

这个问题在这里已经有了答案:

Android Studio: Add jar as library? (35 个回答)

关闭 9年前。

我花了几个小时试图让一个库与我在 Android Studio 中的项目一起工作，但我就是想不通。

这是我的模块的依赖项的样子

还有我的图书馆:

我什至添加了

compile files('libs/signpost-commonshttp4-1.2.1.2.jar')
compile files('libs/signpost-core-1.2.1.2.jar')

到我的 build.gradle。没有这个，应用程序甚至无法编译。

在这个阶段，当我尝试在代码中引用其中一个库时，应用程序崩溃并出现 NoClassDefFoundError 异常。

有些东西告诉我这不应该这么难——我忽略了什么？

LogCat:

05-17 21:51:15.676: I/ActivityManager(714): START u0 {flg=0x10104000 cmp=com.crazydog.splitwiser/.InitialSplash bnds=[328,402][656,692]} from pid 1513
05-17 21:51:15.896: I/ActivityManager(714): Start proc com.crazydog.splitwiser for activity com.crazydog.splitwiser/.InitialSplash: pid=18174 uid=10288 gids={50288, 3003, 1028}
05-17 21:51:16.326: I/ActivityManager(714): Displayed com.crazydog.splitwiser/.InitialSplash: +437ms (total +1m9s209ms)
05-17 21:51:17.017: I/ActivityManager(714): START u0 {cmp=com.crazydog.splitwiser/.LogIn} from pid 18174
05-17 21:51:17.097: E/dalvikvm(18174): Could not find class 'oauth.signpost.commonshttp.CommonsHttpOAuthConsumer', referenced from method com.crazydog.splitwiser.Toolkit.oAuthTransaction
05-17 21:51:17.097: W/dalvikvm(18174): VFY: unable to resolve new-instance 662 (Loauth/signpost/commonshttp/CommonsHttpOAuthConsumer;) in Lcom/crazydog/splitwiser/Toolkit;
05-17 21:51:17.097: D/dalvikvm(18174): DexOpt: unable to opt direct call 0x112f at 0x08 in Lcom/crazydog/splitwiser/Toolkit;.oAuthTransaction
05-17 21:51:17.107: E/AndroidRuntime(18174):    at com.crazydog.splitwiser.Toolkit.oAuthTransaction(Toolkit.java:65)
05-17 21:51:17.107: E/AndroidRuntime(18174):    at com.crazydog.splitwiser.LogIn.onResume(LogIn.java:116)
05-17 21:51:17.117: W/ActivityManager(714):   Force finishing activity com.crazydog.splitwiser/.LogIn
05-17 21:51:17.117: W/ActivityManager(714):   Force finishing activity com.crazydog.splitwiser/.InitialSplash
05-17 21:51:17.618: W/ActivityManager(714): Activity pause timeout for ActivityRecord{40d040d0 u0 com.crazydog.splitwiser/.LogIn}

Answer 1

我遇到了完全相同的问题，和你一样，我认为添加

compile files('libs/signpost-commonshttp4-1.2.1.2.jar')
compile files('libs/signpost-core-1.2.1.2.jar')

在我做了 ./gradlew clean 之后一切正常(我在 Mac 上，所以在你的情况下，相当于。)当您位于项目的根目录时，您应该在终端/命令提示符下执行此命令。