Develop Reference

Android Studio 3 appcompat resourses not found

Hey I have a problem with Android Studio 3(Beta-2)
Every time I create new/open existing project it shows me following errors:
Clean, Rebuild, Restart Studio, Removing gradle files don't work.
In the studio 2.3, everything is fine.
My build.gradle file:
apply plugin: 'com.android.application'
android {
compileSdkVersion 25
buildToolsVersion "25.0.2"
dataBinding.enabled = true
defaultConfig {
applicationId "com.valentun.findgift"
minSdkVersion 16
targetSdkVersion 25
versionCode 1
versionName "1.0"
testInstrumentationRunner
"android.support.test.runner.AndroidJUnitRunner"
vectorDrawables.useSupportLibrary = true
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'
})
annotationProcessor 'com.jakewharton:butterknife-compiler:8.7.0'
compile 'com.jakewharton:butterknife:8.7.0'
compile 'com.google.dagger:dagger:2.11'
annotationProcessor 'com.google.dagger:dagger-compiler:2.11'
compile 'com.android.support:appcompat-v7:25.4.0'
compile 'com.android.support:cardview-v7:25.4.0'
compile 'com.android.support:design:25.4.0'
compile 'com.google.firebase:firebase-storage:11.0.2'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
compile 'com.squareup.picasso:picasso:2.5.2'
compile 'com.squareup.retrofit2:converter-jackson:2.3.0'
compile 'com.github.aakira:expandable-layout:1.6.0#aar'
testCompile 'junit:junit:4.12'
}
apply plugin: 'com.google.gms.google-services'
Project's graddle file:
// 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:3.0.0-beta2'
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()
maven {
url 'https://jitpack.io'
}
maven {
url "https://maven.google.com"
}
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}

Remove Gradle files (.gradle folder) from your project folder (C:\Users.....gradle) and try reopening the Android Studio.
Hope this will help.

Change version 25 to 26
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
android {
compileSdkVersion 26
buildToolsVersion "26.0.1"
defaultConfig {
applicationId "seesaa.vn.testandroidstudio"
minSdkVersion 17
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'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation"org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
implementation 'com.android.support:appcompat-v7:26.0.1'
implementation 'com.android.support.constraint:constraint-layout:1.0.2'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.0'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.0'
}

Your compile SDK version must match the support library's major version.
Since you are using version 25 of the support library, you need to compile against version 25 of the Android SDK.

Try File -> invalidate caches / Restart. Hope this will help.

Android Dependency error

I have following code in build.gradle
apply plugin: 'com.android.application'
android {
compileSdkVersion 26
buildToolsVersion "26.0.1"
defaultConfig {
applicationId "com.example.myapp.myapplication"
minSdkVersion 14
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'
}
}
}
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-v7:26.0.0'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
compile 'com.thefinestartist:finestwebview:1.2.7'
testCompile 'junit:junit:4.12'
}
allprojects {
repositories {
jcenter()
maven {
url 'https://maven.google.com'
}
}
}
But i get error for the following line
compile 'com.android.support:appcompat-v7:26.0.0'
Can any one help me how to fix this issue ?

problem is with
compile 'com.thefinestartist:finestwebview:1.2.7' check below screen shot
Solution :
https://stackoverflow.com/a/25736483/793943

This means your build version is 26.0.1 but ur support gradle version is 26.0.0. Change the support appcompat version from 26.0.0 to 26.0.1 and build.

Try adding below code to your project level build.gradle file, it should work
allprojects {
repositories {
jcenter()
maven {
url 'https://maven.google.com'
}
}
}

Android Studio can't resolve Espresso 3.0.0

According to the Android Espresso documentation to date:
Add Espresso dependencies
To add Espresso dependencies to your project, complete the following steps:
Open your app’s build.gradle file. This is usually not the top-level build.gradle file but app/build.gradle.
Add the following lines inside dependencies:
androidTestCompile 'com.android.support.test.espresso:espresso-core:3.0.0'
androidTestCompile 'com.android.support.test:runner:1.0.0'
I created a new project and the generated app/gradle file was like this:
apply plugin: 'com.android.application'
android {
compileSdkVersion 26
buildToolsVersion "26.0.0"
defaultConfig {
applicationId "com.app.test"
minSdkVersion 24
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'
}
}
}
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.+'
testCompile 'junit:junit:4.12'
}
When I change it to the following:
apply plugin: 'com.android.application'
android {
compileSdkVersion 26
buildToolsVersion "26.0.0"
defaultConfig {
applicationId "com.app.test"
minSdkVersion 24
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'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:26.+'
testCompile 'junit:junit:4.12'
// App's dependencies, including test
compile 'com.android.support:support-annotations:22.2.0'
// Testing-only dependencies
androidTestCompile 'com.android.support.test:runner:1.0.0'
androidTestCompile 'com.android.support.test.espresso:espresso-core:3.0.0'
}
I get the following errors:
Error:(29, 24) Failed to resolve: com.android.support.test:runner:1.0.0
    Install Repository and sync project
Error:(30, 24) Failed to resolve: com.android.support.test.espresso:espresso-core:3.0.0
    Install Repository and sync project
I have tried clicking on the "Install repository and sync project" link but nothing happens. I have also tried looking through the SDK manager, but I can't really see anything.

As the solution from comment is solving the problem I am adding it as an answer for others:
Be sure to add Google's maven link to main build.gradle file:
allprojects {
repositories {
jcenter()
maven {
url "https://maven.google.com"
}
}
}

Simply,
Adding google() into allprojects > repositories will do the trick here...
allprojects {
repositories {
google()
jcenter()
}
}

you can downgrade the version, somehow sometimes the targeted version is unavailable from the repo.
use IDE-UI to select the latest version:
Right click on your project folder, select Open Module Settings
search for the package you want in the dependencies, for example
This way, you'll never get an un available version
(of course remember to set proper repo in build.gradle, too)

use these versions
androidTestCompile 'com.android.support.test:runner:0.5'
androidTestCompile 'com.android.support.test:rules:0.5'
androidTestCompile 'com.android.support.test.espresso:espresso-core:2.2.2'

firebase on android: authentication and database, gradle sync with error

I have written an Android App that uses the Firebase database feature. Everything is working fine and now I would like to integrate the Authentication feature. So I modified my build.gradle for the app to include the two dependencies for the authentication:
apply plugin: 'com.android.application'
android {
compileSdkVersion 25
buildToolsVersion "25.0.2"
defaultConfig {
applicationId "com.example.gmeunier.gestiondepoints"
minSdkVersion 23
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.android.support:support-v4:25.3.1'
compile 'com.android.support:design:25.3.1'
compile 'com.android.support.constraint:constraint-layout:1.0.0-beta4'
compile 'com.android.support:cardview-v7:25.3.1'
compile 'com.google.android.gms:play-services-plus:10.2.6'
compile 'com.google.firebase:firebase-database:10.2.6'
compile 'com.firebaseui:firebase-ui-auth:1.2.0'
compile 'com.google.firebase:firebase-auth:10.2.6'
testCompile 'junit:junit:4.12'
}
apply plugin: 'com.google.gms.google-services'
Despite all my efforts and research on this topic, I still have the following error when I try to sync this gradle :
Failed to resolve: com.twitter.sdk.android:twitter:2.3.0
I can't find which lib/component versions I must use and I would appreciate help and support.

Your project's gradle file should look like this.
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:2.2.3'
classpath 'com.google.gms:google-services:3.0.0'
}
}
allprojects {
repositories {
jcenter()
// Required for 'com.firebaseui:firebase-ui:1.1.1'
maven {
url 'https://maven.fabric.io/public'
}
}
}
Original answer: https://stackoverflow.com/a/41664069/7339411

Add the following line inside "repositories", inside "allprojects" and "buildscript" to your Project Level build.gradle file:
maven {
url 'https://maven.fabric.io/public'
}

Android NoClassDefFoundError for library's class inside a dependency

I created an Android library named "core" that use the Logger library (https://github.com/orhanobut/logger).
Here its build.gradle:
apply plugin: 'com.android.library'
android {
compileSdkVersion 25
buildToolsVersion "25.0.1"
defaultConfig {
minSdkVersion 16
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'])
compile 'com.orhanobut:logger:1.15'
compile 'com.android.support:appcompat-v7:25.0.1'
testCompile 'junit:junit:4.12'
}
Then I build a .aar of core library.
I add this library as a dependency into my application, by putting the .aarcore files in the libs folder.
That's the build.gradle of my application :
apply plugin: 'com.android.application'
android {
compileSdkVersion 25
buildToolsVersion "25.0.1"
defaultConfig {
applicationId "com.package.test"
minSdkVersion 16
targetSdkVersion 25
multiDexEnabled true
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
repositories {
mavenCentral()
jcenter()
flatDir {
dirs 'libs'
}
}
dependencies {
compile 'com.mypackage:core:1.0#aar'
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'
})
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:25.0.1'
compile 'com.android.support:multidex:1.0.1'
}
As you can see I have multidex activated.
It compile just fine but at runtime, at the first call to Logger I get an exception:
stack=java.lang.NoClassDefFoundError: Failed resolution of: Lcom/orhanobut/logger/Logger;
Even if I set transitive = true
compile (com.mypackage:core:1.0#aar) {
transitive=true
}
it doesn't work.
Thank you !

I had to do a couple of things in concert to get it to work.
1) In your library project
Add the following to your project-level gradle file:
buildscript {
dependencies {
classpath 'com.github.dcendents:android-maven-gradle-plugin:2.1'
}
}
Be sure to use the right version of the plugin for your gradle version, check here.
Add the following to your module-level gradle file:
apply plugin: 'com.github.dcendents.android-maven'
group='com.github.YourPackage'// Doesn't have to be github, just an example
Also in this file, make sure your dependencies (the ones you want to be transitive) use api instead of implementation if you are using Gradle 3.4+. If you are using a version of Gradle <3.4, compile is the way to go. Example:
dependencies {
api 'com.google.android.gms:play-services-location:15.0.1'
}
2) In your app project (which uses the library)
Add the following to your module-level gradle file:
dependencies {
implementation('com.github.YourPackage:yourRepo:version#aar') {
transitive=true
}
}
Add the following to you project-level gradle file (but this will depend on where your library is served from, for me it's jitpack):
allprojects {
repositories {
...
maven {
url 'https://jitpack.io'
credentials { username 'yourAuthKey' }// Only for private repositories
}
}
}
Note: You shouldn't add the auth key as a string in build.gradle, put it in a property in your gradle.properties file.
Note 2: JitPack allows you to use for example development-SNAPSHOT as a version number for a gradle dependency. Android Studio caches these dependencies and will not re-download it when you push to your development branch. To overcome this, use commit hashes as version numbers during development or clear (delete) the cache files, located on Windows at ~/.gradle/caches/modules-2/metadata-x.xx/descriptors/com.github.YourPackage/yourRepo. (Needles to say, I learned this the hard way).