安卓 : Getting NoClassDefFoundError for AndroidUtils

Question

我正在使用 Android Studio 开发一个启用了 GCM、需要谷歌登录并使用谷歌地图的应用程序。我还为谷歌应用引擎合并了端点。现在我在尝试调用端点时遇到 noclassfound 错误。

下面给出了我的应用程序的gradle文件

apply plugin: 'com.android.application'
apply plugin: 'com.google.gms.google-services'

android {


    dexOptions {
        javaMaxHeapSize "4g"
    }
}
compileSdkVersion 23
buildToolsVersion "23.0.2"
defaultConfig {
    applicationId "my.application.com"
    minSdkVersion 15
    targetSdkVersion 23
    versionCode 1
    versionName "1.0"
    multiDexEnabled true
}
buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
}
dexOptions {
    incremental true
}
}

dependencies {
compile 'com.android.support:multidex:1.0.0'
compile fileTree(include: ['*.jar'], dir: 'libs')
compile 'com.facebook.android:facebook-android-sdk:4.6.0'

compile project(path: ':backend', configuration: 'android-endpoints')

compile 'com.android.support:appcompat-v7:23.1.1'
compile 'com.android.support:design:23.1.1'
compile 'com.android.support:recyclerview-v7:23.1.1'
compile 'com.android.support:percent:23.1.1'
compile 'com.google.android.gms:play-services-identity:8.3.0'
compile 'com.google.android.gms:play-services-gcm:8.3.0'
compile 'com.google.android.gms:play-services:8.3.0'
}

现在，当我尝试访问 ASyntask 中的端点时，出现了 noclassdefound 错误:

 Registration.Builder builder = new Registration.Builder(AndroidHttp.newCompatibleTransport(),
                new AndroidJsonFactory(), null)
                // options for running against local devappserver
                // - 10.0.2.2 is localhost's IP address in Android emulator
                // - turn off compression when running against local devappserver
                .setRootUrl("http://192.168.1.4:8080/_ah/api")
                .setGoogleClientRequestInitializer(new GoogleClientRequestInitializer() {
                    @Override
                    public void initialize(AbstractGoogleClientRequest<?> abstractGoogleClientRequest) throws IOException {
                        abstractGoogleClientRequest.setDisableGZipContent(true);
                    }
                });

EXACT错误堆栈如下:

java.lang.RuntimeException: An error occured while executingdoInBackground()
                                                                        at android.os.AsyncTask$3.done(AsyncTask.java:299)
                                                                        at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:352)
                                                                        at java.util.concurrent.FutureTask.setException(FutureTask.java:219)
                                                                        at java.util.concurrent.FutureTask.run(FutureTask.java:239)
                                                                        at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
                                                                        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
                                                                        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
                                                                        at java.lang.Thread.run(Thread.java:856)
                                                                     Caused by: **java.lang.NoClassDefFoundError: com.google.api.client.extensions.android.AndroidUtils**
                                                                        at com.google.api.client.extensions.android.http.AndroidHttp.newCompatibleTransport(AndroidHttp.java:54)

我已经尝试了网上给出的大部分建议。- 重建- 删除了所有 gradle 缓存- 重新启动工作室

由于我是 android 和 Java 世界的新手，任何详细的帮助将不胜感激。

Answer 1

您缺少包含以下内容的引用:

com.google.api.client.http.apache.ApacheHttpTransport

请添加:

compile 'com.google.api-client:google-api-client'

查看信息:https://github.com/google/google-api-java-client

并且非常重要:将项目与 gradle 文件同步!