AWSMobileClient is not found

Question

I`ve followed this steps to add the AWS Mobile SDK to my app. When I reach step 4 of the "Connect your backend" section and try to compile my app I get the following error:

Error:(20, 9) error: cannot find symbol variable AWSMobileClient

I've looked up the documentation here and found that the AWSMobileClient class should be inside the com.amazonaws.mobile.client.AWSMobileClient package, but when I try to manually import the mentioned package, I get the following error:

Error:(9, 28) error: package com.amazonaws.mobile does not exist

My current project files look like these:

MainActivity.java

package point.cursoandroid.com.medpoint;

import android.app.Activity;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends Activity {

    private Button botaoLogin;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        AWSMobileClient.getInstance().initialize(this).execute();
        botaoLogin = (Button) findViewById(R.id.botaoLoginId);

        botaoLogin.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                startActivity(new Intent(MainActivity.this, LoginActivity.class));
            }
        });
    }
}

app/build.gradle

apply plugin: 'com.android.application'

android {
    compileSdkVersion 27
    buildToolsVersion "27.0.3"

    defaultConfig {
        applicationId "point.cursoandroid.com.medpoint"
        minSdkVersion 25
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:27.+'
    compile 'com.android.support:support-v4:27.+'
    compile 'com.android.support:design:27.+'
    compile 'com.amazonaws:aws-android-sdk-core:2.6.+'
    compile 'com.amazonaws:aws-android-sdk-s3:2.6.+'
    compile 'com.amazonaws:aws-android-sdk-ddb:2.6.+'
}

Using AndroidStudio 3.0.1 So, any ideas?

Answer 1

You need to import the appropriate dependencies in build.gradle

dependencies {
    implementation ('com.amazonaws:aws-android-sdk-mobile-client:2.16.+@aar') { transitive = true; }
}

Perform a gradle sync and you should be able to import the class and package.

EDIT: Replace 2.16.+ with the latest version of the AWS SDK for Android. The latest version can be found either in GitHub or Maven Repository.

More information about AWSMobileClient can be found in the Documentation and APIReference.