Failed to resolve com google firebase firebase-core 16 0 1

Question

I m trying to add firebase cloud storage to my app  Below is the app build gradle  But it says   Failed to resolve  com google firebase firebase-core 16 0 1  Why  There is no firebase-core in the dependencies at all   apply plugin   com android application   android       compileSdkVersion 27     defaultConfig           applicationId  com louise udacity mydict          minSdkVersion 15         targetSdkVersion 27         versionCode 1         versionName  1 0          testInstrumentationRunner  android support test runner AndroidJUnitRunner            buildTypes           release               minifyEnabled false             proguardFiles getDefaultProguardFile  proguard-android txt     proguard-rules pro                     dependencies       implementation fileTree dir   libs   include      jar        implementation  com android support appcompat-v7 27 1 1      implementation  com android support constraint constraint-layout 1 1 0      implementation  com google firebase firebase-storage 16 0 1      implementation  com google firebase firebase-auth 16 0 1      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 cloud google-cloud-storage 1 31 0      implementation  com firebase firebase-jobdispatcher 0 8 5     apply plugin   com google gms google-services

User · Answer

Just add below code and update all firebase versions that will work   implementation  com google firebase firebase-core 17 2 0

User · Answer

As  Peter Haddad mentioned above   To fix this issue I followed Google firebase integration guidelines and did the following changes in my app build gradle and project build gradle  Follow below mentioned link if you have any doubts  https   firebase google com docs android setup  changes in app build gradle   x000D   x000D  implementation  com google android gms play-services-base 15 0 2  x000D  implementation  com google firebase firebase-core 16 0 1  x000D  implementation  com google firebase firebase-messaging 17 4 0  x000D   x000D   x000D    Changes in Project build gradle   x000D   x000D  repositories   x000D   x000D          google   x000D          jcenter   x000D          mavenCentral   x000D          maven   x000D              url  https   maven fabric io public  x000D            x000D        x000D      dependencies   x000D          classpath  com android tools build gradle 3 1 4  x000D          classpath  com google gms google-services 4 2 0       google-services plugin it should be latest if you are using firebase version 16 0   x000D          x000D        x000D      allprojects   x000D      repositories   x000D           google     add it to top instead of bottom or somewhere in middle x000D          mavenLocal   x000D          mavenCentral   x000D          maven   x000D              url  https   maven google com  x000D            x000D          x000D          jcenter   x000D          maven   x000D                 All of React Native  JS  Obj-C sources  Android binaries  is installed from npm x000D              url   rootDir    node modules react-native android  x000D            x000D           x000D        x000D    x000D   x000D   x000D

User · Answer

Go to     Settings -  Android SDK -  SDK Tools -     and make sure you install Google Play Services

User · Answer

if you are using  compileSdkVersion 23   in app-level gradle  and  classpath  com android tools build gradle 2 1 0    in project-level gradle and you have added the  google-services json file to your project   you need to add just below code  maven      url  https   maven google com      at below of jcenter   in repositories blocks in project-level gradle file here are my gradle files   project-level gradle file   buildscript       repositories           jcenter           maven               url  https   maven google com                      dependencies           classpath  com android tools build gradle 2 1 0          classpath  com google gms google-services 4 0 1              NOTE  Do not place your application dependencies here  they belong            in the individual module build gradle files          allprojects       repositories           jcenter           maven               url  https   maven google com                     task clean type  Delete        delete rootProject buildDir     and app-level gradle file   apply plugin   com android application   android       compileSdkVersion 23     buildToolsVersion  23 0 3       defaultConfig           applicationId  com example moslem amazonlikeapp          minSdkVersion 21         targetSdkVersion 23         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 23 3 0      compile  com google firebase firebase-core 16 0 1    apply plugin   com google gms google-services

User · Answer

Add maven   url  https   maven google com    to your root level build gradle file  repositories       maven   url  https   maven google com        flatDir           dirs  libs

User · Answer

What actually was missing for me and what made it work then was downloading Google Play services  and  Google Repository   Go to  Settings -  Android SDK -  SDK Tools -  check install Google Play services   repository    Hope it helps

User · Answer

From the docs -     Your app gradle file now has to explicitly list com google firebase firebase-core as a dependency for Firebase services to work as expected    Add    implementation  com google firebase firebase-core 16 0 1    and in top level gradle file use the latest version of google play services   classpath  com google gms google-services 4 0 2    https   firebase google com support release-notes android  https   bintray com android android-tools com google gms google-services  Note   You need to add the google   repo in the top level gradle file  as specified in the firebase docs and also it should be before jcenter      buildscript     repositories             google             jcenter              dependencies     classpath  com android tools build gradle 3 1 3    classpath  com google gms google-services 4 0 2          allprojects        repositories                 google                jcenter          task clean type  Delete      delete rootProject buildDir      https   firebase google com docs android setup

User · Answer

I was able to solve the issue by following these steps-  1   This error occurs when you didn t connect your project to firebase   Do that from Tools- Firebase if you are using Android studio version 2 2 or above   2   Make sure you have replaced the compile with implementation in dependencies in app build gradle  3   Include your firebase dependency from the firebase docs  Everything should work fine now

User · Answer

I get the same issue and i solved it by replacing    implementation  com google firebase firebase-core 16 0 1    to   implementation  com google firebase firebase-core 15 0 2    and everything solved and worked well

User · Answer

This is rare  but there is a chance your project s gradle offline mode is enable  disable offline mode with the following steps    In android studio  locate the file tab of the header and click In the drop own menu  select settings In the dialog produced  select  Build  Execution  Deploy  and then select  Gradle  Finally uncheck the  offline work  check box and apply changes   If this doesn t work leave a comment describing your Logcat response and i ll try to help more

User · Answer

If you use Firebase in a library module  you need to apply the google play services gradle plugin to it in addition to the app s  module s   but also  you need to beware of version 4 2 0  and 4 1 0  which are broken  and use version 4 0 2 instead   Here s the issue  https   github com google play-services-plugins issues 22

User · Answer

Since May 23  2018 update  when you re using a firebase dependency  you must include the firebase-core dependency  too  If adding it  you still having the error  try to update the gradle plugin in your gradle-wrapper properties to 4 5 version  distributionUrl https    services gradle org distributions gradle-4 5-all zip  and resync the project

User · Answer

In my case it was resolved by changing the compileSdkVersion and targetSdkVersion from 26 to 27

User · Answer

If you receive an error stating the library cannot be found  check the Google maven repo for your library and version   I had a version suddenly disappear and make my builds fail   https   maven google com web index html

[java] Failed to resolve: com.google.firebase:firebase-core:16.0.1

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