Develop Reference

Why am I having un-fixable issues ever since I updated Android Studio?

I updated Android Studio recently and ever since I am having issues with building the apps.
I get this error when I build the app:
Could not GET 'https://www.jitpack.io/com/android/support/support-v4/maven-metadata.xml'. Received status code 401 from server: Unauthorized
After tons of Invalidate caches and Restart and Re-building the project the error goes away and it works fine, but as soon as I close Android Studio and open it again, the error comes up again.
I also get this error in Syncing the Gradle files:
ERROR: Unable to resolve dependency for ':app#debug/compileClasspath': Could not resolve com.android.support:support-v4:22.+.
Show Details
Affected Modules: app
This is my build Gradle file:
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.3.2'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
classpath 'com.google.gms:google-services:4.2.0'
}
}
allprojects {
repositories {
google()
jcenter()
maven { url 'https://www.jitpack.io' }
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
This is my Gradle file (Module: app)
apply plugin: 'com.android.application'
android {
compileSdkVersion 28
defaultConfig {
applicationId "com.app.myapp"
minSdkVersion 19
targetSdkVersion 28
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-v7:28.0.0'
implementation 'com.google.android.gms:play-services-auth:16.0.1'
implementation 'com.google.firebase:firebase-messaging:17.5.0'
implementation 'com.google.firebase:firebase-core:16.0.8'
implementation 'com.google.firebase:firebase-auth:16.2.0'
implementation 'org.nanohttpd:nanohttpd:2.2.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
implementation 'com.google.firebase:firebase-database:16.1.0'
implementation 'com.google.firebase:firebase-ml-vision:19.0.3'
implementation 'com.google.firebase:firebase-ml-vision-image-label-model:17.0.2'
implementation 'com.google.code.gson:gson:2.8.2'
implementation 'com.melnykov:floatingactionbutton:1.3.0'
implementation 'com.github.vajro:MaterialDesignLibrary:1.6'
implementation 'com.github.devendroid:SquareMenu:1.0.0'
implementation 'org.aviran.cookiebar2:cookiebar2:1.1.1'
//implementation 'com.github.navasmdc:MaterialDesign:1.5#aar' // this was the reason for duplicated value 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'
I am not able to understand what's going wrong. I would appreciate any help.

I also faced the same error when I migrated to newer version of Android Studio after quite some time. The error is maybe due to some bug in newer version of android studio that makes it unable to build non androidX migrated projects.
I just one day casually migrated to androidX and the issue was fixed magically. I also filed a similar bug to yours and also stated that this caused the issue to be fixed.
To migrate to androidX:
Go to Refractor from top menu the click migrate to androidX..
Also don't forget to check the backup your project in zip in case the migration fails.
Refractor the changes it suggests during migration and you're all done.
This fixed my issue permanently.

Try to add maven { url 'https://maven.google.com' } and maven { url "https://jitpack.io" } // <-- and try to use this.
allprojects {
repositories {
google()
jcenter()
maven { url 'https://maven.google.com' } // <-- add this.
maven { url "https://jitpack.io" } // <-- and try to use this.
}
}
Note that google() and maven { url 'https://maven.google.com' } are different.
google() is https://dl.google.com/dl/android/maven2/.

build gradle causes: Gradle DSL method not found: 'implementation()'

My android version is 2.3.3. I update android sdk (26). I get an error after updating. I'm having trouble with build.gradle. What's wrong my code? How to use the DSL implementation() ? How can I configure this project to run ?
build.gradle (Project)
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:2.3.3'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
build.gradle (Module)
apply plugin: 'com.android.application'
android {
compileSdkVersion 26
buildToolsVersion "26.0.1"
defaultConfig {
applicationId "com.ppl.restaurant"
minSdkVersion 16
targetSdkVersion 26
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
allprojects {
repositories {
jcenter()
maven {
url "https://maven.google.com"
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:26.0.1'
compile "com.android.support:support-core-utils:26.0.1"
implementation 'info.androidhive:barcode-reader:1.1.2'
implementation 'com.google.android.gms:play-services-vision:11.0.2'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
testCompile 'junit:junit:4.12'
}
Error Message
Error:(38, 0) Gradle DSL method not found: 'implementation()'
Possible causes:<ul><li>The project 'Restaurant' may be using a version of the Android Gradle plug-in that does not contain the method (e.g. 'testCompile' was added in 1.1.0).
Upgrade plugin to version 2.3.3 and sync project</li><li>The project 'ABC' may be using a version of Gradle that does not contain the method.
Open Gradle wrapper file</li><li>The build file may be missing a Gradle plugin.
Apply Gradle plugin</li>

You can solve it this solutions, try this,
build.gradle (Project) file buildscript and allprojects area
repositories {
jcenter()
maven {
url "https://maven.google.com"
}
}
build.gradle (Module) file dependencies area
dependencies {
implementation fileTree(include: ['*.jar'], dir: 'libs')
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.android.support:support-compat:28.0.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
}

As you can read in the official doc, the implementation() DLS requires (currently)
Gradle v.4
Android Studio 3.x.
Gradle plugin for Android 3.x
Try to use in gradle-wrapper.properties use:
distributionUrl=\
https\://services.gradle.org/distributions/gradle-4.1-rc-1-all.zip
As gradle plugin for Android use:
classpath 'com.android.tools.build:gradle:3.0.0-beta1'
More information about the migration to plugin v3 here.

If you want to use "compile" and android studio 2.3, use this:
compile 'com.facebook.android:facebook-login:4.28.0'
That work for me.

I have solved it like this:
compile 'com.facebook.android:facebook-login:4.28.0'
You need android studio 3.0 to use "implementation" but with android studio 2.3 work with "compile"
P.D.: Sorry my english.

Error when trying to add firebase libraries to app that uses google maps API

I have an android app that I want to add firebase messaging service functionality so I can receieve notifications that are sent from my self-built server to the firebase cloud.
I started adding the configuration lines to the gradle files, but after adding the
apply plugin: 'com.google.gms.google-services'
line, I get an error as follows:
Error:Execution failed for task ':app:processDebugGoogleServices'.
Please fix the version conflict either by updating the version of the google-services plugin (information about the latest version is available at https://bintray.com/android/android-tools/com.google.gms.google-services/) or updating the version of com.google.android.gms to 11.0.2.
This is my module:app gradle script file:
apply plugin: 'com.android.application'
android {
compileSdkVersion 25
buildToolsVersion "26.0.0"
defaultConfig {
applicationId "br.com.berait.brecar"
minSdkVersion 21
targetSdkVersion 25
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:25.3.1'
compile 'com.google.android.gms:play-services-maps:11.0.2'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
compile 'com.squareup.okhttp3:okhttp:3.8.1'
compile 'com.android.support:design:25.3.1'
compile 'com.wdullaer:materialdatetimepicker:3.2.2'
compile 'pl.droidsonroids.gif:android-gif-drawable:1.2.7'
compile 'com.google.firebase:firebase-messaging:10.2.6'
testCompile 'junit:junit:4.12'
}
apply plugin: 'com.google.gms.google-services'
if needed, this is my project level gradle script file:
//Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
jcenter()
mavenCentral()
}
dependencies {
classpath 'com.android.tools.build:gradle:2.3.3'
classpath 'com.google.gms:google-services:3.1.0'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
jcenter()
mavenCentral()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
I have searched S.O for sometime now and all the answers to this type of error haven't worked for me. As you can see, i have the apply plugin line at the bottom of the file. I believe the conflict is being generated by the
compile 'com.google.android.gms:play-services-maps:11.0.2'
line, which was automatically added when I added google maps API support to my application.
Any help is appreciated, thanks in advance!

Bump up the firebase dependency version to
compile 'com.google.firebase:firebase-messaging:11.0.2'
or lower the maps dependency to
compile 'com.google.android.gms:play-services-maps:10.2.6'

How to setup ButterKnife plugin in Android Studio?

I need to install the plugin Butter Knife. Where can I download it? I downloaded a .jar plugin (but not if the file is the one I need), I have installed but when I click on the option "generate" not the option to use butterknife appears. following a video tutorial I modified files Gradle build: I have them now as follows:
apply plugin: 'android-apt'
apply plugin: 'com.android.application'
android {
compileSdkVersion rootProject.ext.compileSdkVersion
buildToolsVersion rootProject.ext.buildToolsVersion
defaultConfig {
applicationId "calcursoedxleccion0.cal"
minSdkVersion rootProject.ext.minSdkVersion
targetSdkVersion rootProject.ext.targetSdkVersion
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:$rootProject.ext.supportLibraryVersion"
compile "com.android.support:recyclerview-v7:$rootProject.ext.supportLibraryVersion"
compile "com.android.support:support-v4:$rootProject.ext.supportLibraryVersion"
compile "com.android.support:design:$rootProject.ext.supportLibraryVersion"
// compile "com.jakewharton:butterknife:$rootProject.ext.butterKnifeVersion"
compile "com.jakewharton:butterknife:$rootProject.ext.butterKnifeVersion"
apt "com.jakewharton:butterknife-compiler:8.0.1"
}
and
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
jcenter()
mavenCentral()
}
dependencies {
classpath 'com.android.tools.build:gradle:2.1.2'
classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
ext{
minSdkVersion = 16
targetSdkVersion = 23
compileSdkVersion = 23
buildToolsVersion = '23.0.3'
supportLibraryVersion = '23.3.0'
butterKnifeVersion = '8.0.1'
}
Gradle to synchronize I get this error:
"The android android-library or plugin must be applied to the project"
error (1.0)
What am I doing wrong?

The easiest way to use ButterKnife library is to add this single line to your module-level build.gradle dependencies list:
dependencies {
implementation 'com.jakewharton:butterknife:7.0.1'
}
You can then synchronize your project!
UPDATE 1
I just noticed Jake the Wharton has updated the library since the last time I used it! Now, it appears you have to add to two separate places:
In your project-level build.gradle file:
buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8'
}
}
And lastly, in your module-level build.gradle file:
apply plugin: 'android-apt'
android {
...
}
dependencies {
implementation 'com.jakewharton:butterknife:8.0.1'
apt 'com.jakewharton:butterknife-compiler:8.0.1'
}
It is important that you add apply plugin: 'android-apt' to top of the module-level build.gradle file; most likely below the first line like this:
apply plugin: 'com.android.application'
apply plugin: 'android-apt'
I have just tested this and works for me. Good luck!
UPDATE 2
Jake Wharton just released an update to the library and here is what you need to do in order to use it:
So, inside your build.gradle (app-level), add the following to your dependencies!
dependencies {
compile 'com.jakewharton:butterknife:8.8.1'
annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'
}
I hope this helps you!
UPDATE 3:
Here is versions released till now in case you have conflict with other libraries and want it to work on older API levels
With trying , in case you want it min SDK level 15 till now
you will need to play with versions to get it working in my case these set
are compatable so far with SDK 15 as minimum.
This case i only put these in module app level build.gradle.
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
implementation 'com.android.support:appcompat-v7:24.2.1'
implementation 'com.android.support.constraint:constraint-layout:1.0.2'
testCompile 'junit:junit:4.12'
implementation group: 'com.google.code.gson', name: 'gson', version: '2.8.5'
implementation group: 'com.squareup.retrofit2', name: 'converter-gson', version: '2.3.0'
implementation 'com.jakewharton:butterknife:8.4.0'
annotationProcessor 'com.jakewharton:butterknife-compiler:8.4.0'
implementation 'io.reactivex:rxjava:1.1.6'
implementation 'io.reactivex:rxandroid:1.2.1'
implementation 'com.squareup.retrofit2:adapter-rxjava:2.1.0'
implementation 'com.android.support:recyclerview-v7:24.2.1'
}

In Android Studio you can do this by:
Right-click your module
Click 'Open Module Settings'
Click Dependencies Tab
Click the green plus icon
Select 'Library Dependency' from the dropdown list
Enter "butterknife" in the search field and click the search button
After selecting the library, Android Studio adds the dependency to your module.
Since butterknife does annotation processing, you have to add this to the build.gradle of your module right after the compile statement for butterknife:
annotationProcessor 'com.jakewharton:butterknife-compiler:8.5.1'
where the version number at the end should match your version of butterknife.

Failed to resolve: com.firebase:firebase-client-android:2.3.1

I am working on the Sample in the below blog
https://www.firebase.com/blog/2015-10-01-firebase-android-app-engine-tutorial.html
The projects fails to compile after adding the dependency
compile 'com.firebase:firebase-client-android:2.3.1'
Other dependencies compile without any issue.
'com.android.support:appcompat-v7:23.0.1'
'compile 'com.android.support:design:23.0.1'
Where am I going wrong ?
here is my module build.gradle
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion "23.0.1"
defaultConfig {
applicationId "com.tri.todoapp"
minSdkVersion 15
targetSdkVersion 23
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
packagingOptions {
exclude 'META-INF/LICENSE'
exclude 'META-INF/LICENSE-FIREBASE.txt'
exclude 'META-INF/NOTICE'
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
// testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.0.1'
compile 'com.android.support:design:23.0.1'
compile 'com.firebase:firebase-client-android:2.4.0'
}
Top-level gradle
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:1.3.0'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}

The project fails to compile because version 2.3 doesn't exists. You should use 2.3.1:
compile 'com.firebase:firebase-client-android:2.3.1'
or the newest 2.4.0:
compile 'com.firebase:firebase-client-android:2.4.0'
You can find more information here:
https://www.firebase.com/docs/android/quickstart.html

We are talking about Google api versions without mentioning Google Repository version.
The actual problem here is that your Google Repository doesn't "know" about the firebase version you all were trying to use.
I got same error while following the official firebase documentation
My app-level build.gradle file looked like this:
apply plugin: 'com.android.application'
android {
// ...
}
dependencies {
// ...
compile 'com.google.firebase:firebase-core:10.2.1'
compile 'com.google.firebase:firebase-messaging:10.2.1'
}
apply plugin: 'com.google.gms.google-services'
My Google Repository version was 44
You can check yours in
SDK Manager>Android SDK> SDK Tools (tab)
Latest version is 46 (at the time of writing this)
I updated to latest Google Repository version and the problem was solved!
You can update by checking "Google Repository" under SDK Tools tab and click "Apply" to update Google Repository to latest version
If you do not wish to update your Google Repository version, you can still resolve the issue by lowering your firebase api version slighlty.
For my case, changing app-level build.gradle file to the following also fixes my problem:
apply plugin: 'com.android.application'
android {
// ...
}
dependencies {
// ...
compile 'com.google.firebase:firebase-core:10.2.0'
compile 'com.google.firebase:firebase-messaging:10.2.0'
}
apply plugin: 'com.google.gms.google-services'
firebase version has been lowered to version 10.2.0 from 10.2.1
This works because 10.2.0 is known to Google repository ver 44.
I hope this answer will help many in future.

There are two modules you need to add firebase to:
The android module: You should use the "Add Firebase" checkbox that appears in project structure that will add 2.3.1 to the android app.
The backend module requires 2.4 to run in app engine and those steps require you to add the dependency manually.
In that case, be sure you are adding the jvm client -- not the "android" client for app engine.
compile 'com.firebase:firebase-client-android:2.4.0'

It happens because this version
compile 'com.firebase:firebase-client-android:2.3'
doesn't exist.
You can use one of these:
compile 'com.firebase:firebase-client-android:2.4.0'
compile 'com.firebase:firebase-client-android:2.3.1'
compile 'com.firebase:firebase-client-android:2.3.0'
Pay attention.
compile 'com.firebase:firebase-client-android:2.3.0'
is different from
compile 'com.firebase:firebase-client-android:2.3'
You can find the full list in maven:

using
compile 'com.firebase:firebase-client-android:+'
worked for me.

I had the exact same problem today, but with version 2.4.1. I could however not open the link l jcenter.bintray.com/com/firebase/firebase-client-android/2.4.1/ as mentioned by Mattia Maestrini.
Solution for me: Deactivate my VPN, and then it worked.

it looks like it was a dex limit error. Adding the Firebase SDK must have put me over the limit, to fix this i had to add multiDexEnabled true in the defaultConfig section of my app:build.gradle file as well as compile 'com.android.support:multidex:1.0.0' in the dependencies
Here is my gradle
gradle for project
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:1.5.0'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
gradle module app
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion "23.0.2"
defaultConfig {
applicationId "com.tranetech.openspace.firebasedemo"
minSdkVersion 16
targetSdkVersion 23
versionCode 1
versionName "1.0"
multiDexEnabled true
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
packagingOptions {
exclude 'META-INF/LICENSE'
exclude 'META-INF/LICENSE-FIREBASE.txt'
exclude 'META-INF/NOTICE'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.2.1'
compile 'com.firebase:firebase-client-android:2.5.2+'
compile 'com.firebaseui:firebase-ui:0.3.1'
compile 'com.android.support:multidex:1.0.0'
}

I not sure you still working with that project or not, but I also faced the same problem with you, my solution is
In your build.gradle (outside the app folder one), add
buildscript {
repositories {
jcenter()
}
dependencies {
////
classpath 'com.google.gms:google-services:3.0.0'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
and in your module build.gradle, add
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.+'
compile 'com.android.support:design:23.+'
compile 'com.google.firebase:firebase-core:9.2.1'
compile 'com.google.firebase:firebase-database:9.2.1'
compile 'com.firebase:firebase-client-android:2.4.0'
}
apply plugin:
'com.google.gms.google-services'// <- this code
And the last, don't forget to download google-services.json put in your app folder, the path should look like \yourapplication\app, you also can refer to this link for download google-services.json file. Download a configuration file

compile is deprecated. You should use:
implementation 'com.firebase:firebase-client-android:2.5.2'