Develop Reference

android design library 28.0.0 causes app to crash

Including android design library to the dependencies causes app to crash.
Im launching this on Nexus S emulator with 25 API. All my libraries are of the same version, so I don't know what's the problem.
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.android.support:design:28.0.0' //this one
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
implementation 'com.android.support:support-v4:28.0.0'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
implementation 'com.android.support:cardview-v7:28.0.0' // For CardView
implementation 'com.android.support:recyclerview-v7:28.0.0'
}

Migrate your code to AndroidX, the new SDK dependency dir structure will help you avoid such problems now and in the future.

failed to resolve : Firebase auth 15.0.0

dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
implementation 'com.firebase:firebase-client-android:2.5.2+'
implementation 'com.google.firebase:firebase-core:16.0.1'
implementation 'com.android.volley:volley:1.1.0'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
implementation 'com.google.firebase:firebase-auth:16.0.1:15.0.0'
}
I don't know but the error only shows the appcompat 28.0.0 won't work.

Change
this, implementation 'com.google.firebase:firebase-auth:16.0.1:15.0.0'
to this, implementation 'com.google.firebase:firebase-auth:16.0.1'
and better, update all dependencies to the latest versions

The following dependency is put in by the Firebase Assistant to "Add Firebase Authentication to the App"
implementation 'com.google.firebase:firebase-auth:16.0.1:15.0.0'
If you remove 15.0.0, and make it
implementation 'com.google.firebase:firebase-auth:16.0.1'
that automatically removes Firebase Authentication in the Firebase Assistant, beating the whole purpose. Also if you change to the '...firebase-auth:16.0.1:15.0.0' to the latest version '...firebase-auth:16.1.0:15.0.0', nothing happens to the error, as it is due to the '15.0.0' part.
This is probably a blocker bug from Firebase or Google side, which could be only corrected by them. Hope this catches their attention soon. Otherwise all new developments using this version of Firebase Auth or Database will be stalled. Older versions may be working though.

Error: Program type already present: com.google.android.gms.internal.measurement.zzdz after adding analytics

After I added google analytics I get this error, can't find a solution yet...
here is my gradle:
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
//noinspection GradleCompatible
implementation 'com.android.support:support-v4:28.0.0-rc02'
implementation 'com.android.support:design:28.0.0-rc01'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
implementation 'com.skyfishjy.ripplebackground:library:1.0.1'
implementation 'de.hdodenhof:circleimageview:2.2.0'
implementation 'com.budiyev.android:circular-progress-bar:1.2.0'
implementation 'com.github.channguyen:adv:1.0.0'
implementation 'com.github.jetradarmobile:android-snowfall:1.2.0'
implementation 'com.squareup.okhttp3:okhttp:3.11.0'
implementation 'com.google.code.gson:gson:2.8.5'
implementation 'com.github.Binary-Finery:Bungee:master-SNAPSHOT'
implementation 'jp.wasabeef:recyclerview-animators:2.3.0'
implementation 'com.google.firebase:firebase-ads:17.1.0'
implementation 'com.google.firebase:firebase-core:16.0.5'
implementation 'com.google.firebase:firebase-messaging:17.3.4'
implementation 'com.android.support:support-dynamic-animation:28.0.0'
implementation 'com.google.android.gms:play-services-analytics:16.0.5' //added this and got this error!
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}
apply plugin: 'com.google.gms.google-services'

build.gradle (Module:app) this code:
dependencies {
implementation 'com.google.firebase:firebase-core:16.0.6'
}
apply plugin: 'com.google.gms.google-services'`
and
build.gradle (Project:project) this code:
dependencies {
classpath 'com.google.gms:google-services:4.0.1'
}
this work for me.

I think it's because you have used a libraries for Firebase with Google Analytics Services SDK for Android.
It says from the documentation, Add Analytics to Your Android App that Firebase SDK is the recommended method to track Android Apps. There's a service from Firebase library you can use.
Analytics com.google.firebase:firebase-analytics:16.0.5
You can view here the other latest versions of Firebase SDK for Android.
If you want to continue to use Google Analytics Services SDK for Android, you can follow the guide from the documentation.

How to use implementation 'com.google.firebase:firebase-auth:16.0.3:15.0.0' not work

I use the latest version of Android Studio 3.2 & Plugin. When I try to connect firebase it show me to add dependencies -implementation 'com.google.firebase:firebase-auth:16.0.3:15.0.0' for Firebase authentication | implementation 'com.google.firebase:firebase-database:16.0.1:15.0.0' for Realtime Database | implementation 'com.google.firebase:firebase-storage:16.0.1:15.0.0' for Cloud Storage
When using these dependencies it connect Firebase properly but Sync Failed. How to Use these dependencies?
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:support-v4:28.0.0'
implementation 'com.android.support:design:28.0.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
implementation 'com.google.firebase:firebase-core:16.0.3'
implementation 'com.google.firebase:firebase-auth:16.0.3:15.0.0'
implementation 'com.google.firebase:firebase-database:16.0.1:15.0.0'
implementation 'com.google.firebase:firebase-storage:16.0.1:15.0.0'
}
apply plugin: 'com.google.gms.google-services'

I had faced the same issue before. If there is the update available then update your android it will fix it. from my experience when I use the assistant to add the dependencies then it comes like this
implementation 'com.google.firebase:firebase-database:16.0.1:15.0.0'
but the it is not correct update it with this
implementation 'com.google.firebase:firebase-database:16.0.1'
or
implementation 'com.google.firebase:firebase-database:15.0.0'
or this
maybe this will help you
here is official documentation for help

Update you firebase dependencies like this:
implementation 'com.google.firebase:firebase-core:16.0.3'
implementation 'com.google.firebase:firebase-auth:16.0.3'
implementation 'com.google.firebase:firebase-database:16.0.1'
implementation 'com.google.firebase:firebase-storage:16.0.1'
Basically, remove the last ":15.0.0" part. You probably copied these from the firebase website and made a mistake while pasting

FirebaseUI causes DexException Multiple Dex Files

I am using FirebaseUI to try out the RecyclerViewAdapter. When I try to run the app the gradle build doesn't succeed and gives these errors:
Errors shown by Gradle
This doesn't happen when I take out the FirebaseUI Dependency.
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
implementation 'com.android.support:appcompat-v7:27.1.1'
implementation 'com.firebaseui:firebase-ui-database:4.1.0'
implementation 'com.android.support:design:27.1.1'
implementation 'com.android.support:cardview-v7:27.1.1'
implementation 'com.android.support:recyclerview-v7:27.1.1'
implementation 'com.android.support.constraint:constraint-layout:1.1.2'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'}
Edit: I added MultiDex Support as mentioned on Android Developers Site
What should I do to make the build successful and run the app.
Thanks in advance.