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？
日志猫：
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}