Android项目中包含的第三方库出错

我在android应用程序中包含的每个第三方库项目中都得到了NoClassDefFoundError

当我用我的应用程序配置GoogleMapV2时，我得到了以下错误

09-07 01:35:09.429: E/AndroidRuntime(2061): java.lang.NoClassDefFoundError: Failed resolution of: Lcom/google/android/gms/maps/model/LatLng;
09-07 01:35:09.429: E/AndroidRuntime(2061):     at com.taxsmart.collegeapp.support.GoogleMapActivity.<clinit>(GoogleMapActivity.java:34)
09-07 01:35:09.429: E/AndroidRuntime(2061):     at java.lang.reflect.Constructor.newInstance(Native Method)
09-07 01:35:09.429: E/AndroidRuntime(2061):     at java.lang.Class.newInstance(Class.java:1606)
09-07 01:35:09.429: E/AndroidRuntime(2061):     at android.app.Instrumentation.newActivity(Instrumentation.java:1066)
09-07 01:35:09.429: E/AndroidRuntime(2061):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2226)
09-07 01:35:09.429: E/AndroidRuntime(2061):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)
09-07 01:35:09.429: E/AndroidRuntime(2061):     at android.app.ActivityThread.access$800(ActivityThread.java:151)
09-07 01:35:09.429: E/AndroidRuntime(2061):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
09-07 01:35:09.429: E/AndroidRuntime(2061):     at android.os.Handler.dispatchMessage(Handler.java:102)
09-07 01:35:09.429: E/AndroidRuntime(2061):     at android.os.Looper.loop(Looper.java:135)
09-07 01:35:09.429: E/AndroidRuntime(2061):     at android.app.ActivityThread.main(ActivityThread.java:5254)
09-07 01:35:09.429: E/AndroidRuntime(2061):     at java.lang.reflect.Method.invoke(Native Method)
09-07 01:35:09.429: E/AndroidRuntime(2061):     at java.lang.reflect.Method.invoke(Method.java:372)
09-07 01:35:09.429: E/AndroidRuntime(2061):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
09-07 01:35:09.429: E/AndroidRuntime(2061):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
09-07 01:35:09.429: E/AndroidRuntime(2061): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.google.android.gms.maps.model.LatLng" on path: DexPathList[[zip file "/data/app/com.taxsmart.collegeapp-1/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
09-07 01:35:09.429: E/AndroidRuntime(2061):     at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
09-07 01:35:09.429: E/AndroidRuntime(2061):     at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
09-07 01:35:09.429: E/AndroidRuntime(2061):     at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
09-07 01:35:09.429: E/AndroidRuntime(2061):     ... 15 more
09-07 01:35:09.429: E/AndroidRuntime(2061):     Suppressed: java.lang.ClassNotFoundException: com.google.android.gms.maps.model.LatLng
09-07 01:35:09.429: E/AndroidRuntime(2061):         at java.lang.Class.classForName(Native Method)
09-07 01:35:09.429: E/AndroidRuntime(2061):         at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
09-07 01:35:09.429: E/AndroidRuntime(2061):         at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
09-07 01:35:09.429: E/AndroidRuntime(2061):         at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
09-07 01:35:09.429: E/AndroidRuntime(2061):         ... 16 more
09-07 01:35:09.429: E/AndroidRuntime(2061):     Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available

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请帮我解决这个问题。我需要做哪些配置更改？

由于GMS库与您的项目位于同一个工作区中，我想它只是没有链接

在Eclipse包资源管理器中右键单击，选择属性，然后从左侧列表中选择Android

单击右窗格底部的“添加…”按钮，选择google play services lib（或类似内容）将库添加到列表中

检查project.properties文件（在项目的根文件夹中）。它应该有这样一条线：

android.library.reference.1=../google-play-services-lib

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现在清理项目并尝试再次构建它。希望这会有所帮助。

您可能需要将“构建工具版本”升级到最新版本。

您的项目和库是否位于同一工作空间？您使用的是eclipse还是android studio？@KaveeshKanwal我正在使用eclipse@koutuk对在同一个工作区。罗汉，这似乎只是一个进口问题…谢谢回复。我也这么做了，但没用。

android.library.reference.1=../google-play-services-lib