Api Gateway Android SDK NoClassDefFoundError

Question

We're looking to implement our AWS API Gateway generated Android SDK in our app.

When we try to build our client class, we get the following error:

java.lang.NoClassDefFoundError: Failed resolution of:Lcom/amazonaws/util/json/DateDeserializer;

Here's how we create our client instance:

ApiClientFactory factory = new ApiClientFactory();
final CigarSocialClient client = factory.build(CigarSocialClient.class);

We have been searching for a solution but haven't found anything yet. The best solution seems to ditch the generated sdk and invoke our api gateway via web requests.

Any help is appreciated!

UPDATE:

We're using the following aws tutorial

Here is our build.gradle file for the app

apply plugin: 'com.android.application'

android {
    compileSdkVersion 23
    buildToolsVersion '24.0.1'
    defaultConfig {
        applicationId "com.example"
        minSdkVersion 14
        targetSdkVersion 24
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}
dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    compile fileTree(include: ['*.jar'], dir: 'app/libs')
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:24.2.0'
    compile 'com.android.support:recyclerview-v7:23.4.0'
    compile 'com.android.support:design:24.2.0'
    compile 'com.android.volley:volley:1.0.0'
    compile 'com.android.support:support-v4:23.4.0'
    compile 'com.amazonaws:aws-android-sdk-core:2.2.+'
    compile 'com.amazonaws:aws-android-sdk-cognitoidentityprovider:2.2.+'
}

And here is the stack trace:

D/Error: ERR: stack=java.lang.NoClassDefFoundError: Failed resolution of: Lcom/amazonaws/util/json/DateDeserializer; at com.amazonaws.mobileconnectors.apigateway.ApiClientHandler.(ApiClientHandler.java:59) at com.amazonaws.mobileconnectors.apigateway.ApiClientFactory.getHandler(ApiClientFactory.java:145) at com.amazonaws.mobileconnectors.apigateway.ApiClientFactory.build(ApiClientFactory.java:123) at com.example.API.testApiGatwaySdk(API.java:125) at com.example.ListFragment$override.onCreateView(ListFragment.java:60) at com.example.ListFragment$override.access$dispatch(ListFragment.java) at com.example.ListFragment.onCreateView(ListFragment.java:0) at android.support.v4.app.Fragment.performCreateView(Fragment.java:2080) at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1108) at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1290) at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1272) at android.support.v4.app.FragmentManagerImpl.dispatchActivityCreated(FragmentManager.java:2149) at android.support.v4.app.FragmentController.dispatchActivityCreated(FragmentController.java:201) at android.support.v4.app.FragmentActivity.onStart(FragmentActivity.java:600) at android.support.v7.app.AppCompatActivity.onStart(AppCompatActivity.java:178) at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1256) at android.app.Activity.performStart(Activity.java:6929) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2910) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3008) at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:4974) at android.app.ActivityThread.-wrap21(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1656) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:154) at android.app.ActivityThread.main(ActivityThread.java:6688) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1468) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1358) Caused by: java.lang.ClassNotFoundException: Didn't find class "com.amazonaws.util.json.DateDeserializer" on path: DexPathList[[dex file "/data/data/com.example/files/instant-run/dex/slice-support-annotations-24.2.0_f4e9ad562a860d98fa5881a52f2737573a46b23e-classes.dex", dex file "/data/data/com.example/files/instant-run/dex/slice-slice_9-classes.dex", dex file "/data/data/com.example/files/instant-run/dex/slice-slice_8-classes.dex", dex file "/data/data/com.example/files/instant-run/dex/slice-slice_7-classes.dex", dex file "/data/data/com.example/files/instant-run/dex/slice-slice_6-classes.dex", dex file "/data/data/com.example/files/instant-run/dex/slice-slice_5-classes.dex", dex file "/data/data/com.example/files/instant-run/dex/slice-slice_4-classes.dex", dex file "/data/data/com.example/files/instant-run/dex/slice-slice_3-classes.dex", dex file "/data/data/com.example/files/instant-run/dex/slice-slice_2-classes.dex", dex file "/data/data/com.example/files/instant-run/dex/slice-slice_1-classes.dex", dex file "/data/data/com.example/files/instant-run/dex/slice-slice_0-classes.dex", dex file "/data/data/com.example/files/instant-run/dex/slice-internal_impl-24.2.0_d08c5958e93c18231cddf69dc14d83b8ae6d3fa3-classes.dex", dex file "/data/data/com.example/files/instant-run/dex/slice-internal_impl-24.2.0_ce51fbf88aa3b5412a363fc449e8164899b38118-classes.dex", dex file "/data/data/com.example/files/instant-run/dex/slice-internal_impl-24.2.0_982f26845e74cf0a28b29b365

I believe this is a debug build. I'm a bit new to android but I can see the output apk has the app-debug.apk filename. — njgrisafi
Updated the question with the build.gradle file. Our sdk is inside our app/libs folder. — njgrisafi

Karthik Karthik · Accepted Answer · 2017-05-26T17:14:45

You are using a version of aws-android-sdk-core that is very old and not compatible with the altest clients generated by API gateway. Please update the sdk to the latest.

Api Gateway Android SDK NoClassDefFoundError

1 Answers