Develop Reference

Android Studio project sync FAILED

I attempted to import a project that Udacity's android course provided, but there were some issues. In the build.grade(app module) I changed compile toimplementation and testCompile to testImplementation. The project synced successfully, but when I executed the project on the emulator it gave me the following errors.
Could not find com.android.tools.build:aapt2:3.3.1-5013011.
Searched in the following locations:
- file:/C:/Users/root/AppData/Local/Android/Sdk/extras/m2repository/com/android/tools/build/aapt2/3.3.1-5013011/aapt2-3.3.1-5013011.pom
- file:/C:/Users/root/AppData/Local/Android/Sdk/extras/m2repository/com/android/tools/build/aapt2/3.3.1-5013011/aapt2-3.3.1-5013011-windows.jar
- file:/C:/Users/root/AppData/Local/Android/Sdk/extras/google/m2repository/com/android/tools/build/aapt2/3.3.1-5013011/aapt2-3.3.1-5013011.pom
- file:/C:/Users/root/AppData/Local/Android/Sdk/extras/google/m2repository/com/android/tools/build/aapt2/3.3.1-5013011/aapt2-3.3.1-5013011-windows.jar
- file:/C:/Users/root/AppData/Local/Android/Sdk/extras/android/m2repository/com/android/tools/build/aapt2/3.3.1-5013011/aapt2-3.3.1-5013011.pom
- file:/C:/Users/root/AppData/Local/Android/Sdk/extras/android/m2repository/com/android/tools/build/aapt2/3.3.1-5013011/aapt2-3.3.1-5013011-windows.jar
- https://jcenter.bintray.com/com/android/tools/build/aapt2/3.3.1-5013011/aapt2-3.3.1-5013011.pom
- https://jcenter.bintray.com/com/android/tools/build/aapt2/3.3.1-5013011/aapt2-3.3.1-5013011-windows.jar
Required by:
project :app
I think the required libraries needed to build cannot be found, but I don't know how to solve this. I googled the problem, but I can't find a solution.
My build.gradle file is this:
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
defaultConfig {
applicationId "com.example.android.miwok"
minSdkVersion 15
targetSdkVersion 23
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
testImplementation 'junit:junit:4.12'
api 'com.android.support:appcompat-v7:23.3.0'
api 'com.android.support:support-v4:23.3.0'
api 'com.android.support:design:23.3.0'
}
build.grade(project) is:
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
jcenter()
google()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.3.1'
// 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
}

Beginning with Android Studio 3.2, the source for AAPT2 (Android Asset Packaging Tool 2) is Google's Maven repository.
To use AAPT2, make sure that you have a google() dependency in your build.gradle file.
allprojects {
repositories {
google()
jcenter()
}
}

Check the official documentation.
The AAPT2 (Android Asset Packaging Tool) is a build tool that Android Studio and Android Gradle Plugin.
Android Gradle Plugin 3.0.0 and higher enable AAPT2 by default.
With Android Studio 3.2 to use AAPT2, make sure that you have a google() dependency in your build.gradle:
buildscript {
repositories {
google() // here
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.2.0'
}
} allprojects {
repositories {
google() // and here
jcenter()
}

Could not find support-media-compat.aar

Trying Firebase to an android gradle app. As soon as I add the firebase dependency I get the following build error.
FAILURE: Build failed with an exception.
* What went wrong:
Could not resolve all files for configuration ':app:debugCompileClasspath'.
> Could not find support-media-compat.aar (com.android.support:support-media-compat:26.1.0).
Searched in the following locations:
https://jcenter.bintray.com/com/android/support/support-media-compat/26.1.0/support-media-compat-26.1.0.aar
> Could not find support-core-utils.aar (com.android.support:support-core-utils:26.1.0).
Searched in the following locations:
https://jcenter.bintray.com/com/android/support/support-core-utils/26.1.0/support-core-utils-26.1.0.aar
> Could not find support-compat.aar (com.android.support:support-compat:26.1.0).
Searched in the following locations:
https://jcenter.bintray.com/com/android/support/support-compat/26.1.0/support-compat-26.1.0.aar
> Could not find support-compat.aar (com.android.support:support-compat:26.1.0).
Searched in the following locations:
https://jcenter.bintray.com/com/android/support/support-compat/26.1.0/support-compat-26.1.0.aar
It looks like it's only searching jcenter. But every reference of jcenter has other repos listed to search.
buildscript {
repositories {
jcenter()
google()
}
dependencies {
classpath "com.android.tools.build:gradle:3.2.0"
// 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' // google-services plugin
}
}
allprojects {
repositories {
jcenter()
google()
maven {
url 'https://maven.google.com'
}
}
}
app/build.gradle
apply plugin: 'com.android.application'
android {
compileSdkVersion 28
buildToolsVersion "28.0.3"
defaultConfig {
applicationId "io.nme.samples.displayingabitmap"
minSdkVersion 16
targetSdkVersion 28
versionCode 181
versionName "1.0.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
api fileTree(dir: 'libs', include: ['*.jar'])
androidTestImplementation('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
api 'com.android.support:appcompat-v7:24.2.1'
api 'com.android.support:support-v4:24.2.1'
testImplementation 'junit:junit:4.12'
dependencies {
api project(':extension-api')
api project(':haxe-firebase')
}
implementation 'com.google.firebase:firebase-core:16.0.4'
}
// ADD THIS AT THE BOTTOM
apply plugin: 'com.google.gms.google-services'
What am I missing here?

I came across the same issue about locating libraries. However by adjusting the repositories order, this issue has been resolved.
repositories {
google()
jcenter()
// others
}
It seems that a maven site hosted by google is what we're looking for in the first place.
BTW, maven { url 'https://maven.google.com'} is used for Gradle version lower than 4.1 and google() is the newer form of that. See also this doc.

api 'com.android.support:appcompat-v7:24.2.1'
api 'com.android.support:support-v4:24.2.1'
That's your problem right there. Even without Firebase, this should've been causing issues. You're targeting and building with API 28, but your support dependencies are at API 24. Change them to use 28.0.0.
Also check your extension-api and haxe-firebase projects and make sure they're using the latest compile and SDK versions, as well as build tools version and support library versions.

You have to Replace 26.1.0 and use support library of version 28.0.0

use below
buildscript {
ext.kotlin_version = '1.2.20'
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:2.3.3'2.3.3
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.7.3'
classpath 'com.github.dcendents:android-maven-gradle-plugin:2.0'
}
}
allprojects {
repositories
{
maven { url "https://dl.google.com/dl/android/maven2/" }
maven { url "http://jcenter.bintray.com/" }
maven { url 'https://plugins.gradle.org/m2/'}
maven { url "https://maven.google.com" }
maven { url 'https://jitpack.io' }
mavenCentral()
flatDir {
dirs 'libs'
}
}
}

Gradle Project Sync Failed, Kotlin

I am using a beta Kotlin and Android-Studio channel. After update to the latest version i got some gradle sync error.
Below are the log i copied from Event Log:
Error:Could not find org.jetbrains.kotlin:kotlin-gradle-plugin:1.2.0-rc-39.
Searched in the following locations:
file:/home/yourpc/Android/android/gradle/m2repository/org/jetbrains/kotlin/kotlin-gradle-plugin/1.2.0-rc-39/kotlin-gradle-plugin-1.2.0-rc-39.pom
file:/home/yourpc/Android/android/gradle/m2repository/org/jetbrains/kotlin/kotlin-gradle-plugin/1.2.0-rc-39/kotlin-gradle-plugin-1.2.0-rc-39.jar
https://dl.google.com/dl/android/maven2/org/jetbrains/kotlin/kotlin-gradle-plugin/1.2.0-rc-39/kotlin-gradle-plugin-1.2.0-rc-39.pom
https://dl.google.com/dl/android/maven2/org/jetbrains/kotlin/kotlin-gradle-plugin/1.2.0-rc-39/kotlin-gradle-plugin-1.2.0-rc-39.jar
https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-gradle-plugin/1.2.0-rc-39/kotlin-gradle-plugin-1.2.0-rc-39.pom
https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-gradle-plugin/1.2.0-rc-39/kotlin-gradle-plugin-1.2.0-rc-39.jar
Required by:
project :
below is the build.gradle
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
ext.kotlin_version = '1.2.0-rc-39'
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.1.0-alpha04'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
below is the app build.gradle:
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
android {
compileSdkVersion 26
defaultConfig {
applicationId "com.udebest.myapplication"
minSdkVersion 15
targetSdkVersion 27
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
postprocessing {
removeUnusedCode false
removeUnusedResources false
obfuscate false
optimizeCode false
proguardFile 'proguard-rules.pro'
}
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation"org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
implementation 'com.android.support:appcompat-v7:26.1.0'
implementation 'com.android.support.constraint:constraint-layout:1.0.2'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.1'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
}
Please, anyone has an idea about this? I don't really know how can I solve this? I could not find any solutions out there.

Change your repositories in buildscript and allprojects into:
{
google()
jcenter()
mavenCentral()
maven {
url 'https://dl.bintray.com/kotlin/kotlin-dev/'
}
}
This works for me.

First, I updated Kotlin plugin thru tool, Kotlin, configure kotlin plugin update.
After, in App directory, in build.Gradle file search:
repositories {
// You need to add the following repository to download the
// new plugin.
google()
}
I add a new repository
maven { url 'C:/Program Files/Android/Android Studio/gradle/m2repository/'}
this is the path thru my local directory where the resources are. After this try again to sync

Change and try
classpath 'com.android.tools.build:gradle:3.1.0-alpha04'
to
classpath 'com.android.tools.build:gradle:3.0.0'
It may be due to the alpha release of gradle.

Use below version of kotlin in build.gradle(Project)
kotlin_version = '1.1.4-3'
dependencies {
classpath 'com.android.tools.build:gradle:3.0.0'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
}
Declare dependency of kotlin in build.gradle(Module) as below
compile "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"

check your Kotlin version in build.gradle.
I got the same issue when the version was 1.1.0 which was added by default.
changed to recent version 1.3.21 then it is working fine.

This solution has worked for me for React Native(0.63) after installing react-native-image-picker by Ray Eldath, from above comment
//in android.build.gradle
{
google()
jcenter()
mavenCentral()
maven {
url 'https://dl.bintray.com/kotlin/kotlin-
dev/'
}
}

First, close Android studio, delete the .gradle folder, and then open Android Studio again, probably as an administrator
This will make it sync from the start, and solve the issue.
This issue was resolved for one of my peers.

Uninstall the Kotlin plugin (Preferences > Plugins > Kotlin > Uninstall) and use the version that comes with the IDE .

Cannot resolve rxjava2 with gradle 3.0

Hare is my app gradle:
apply plugin: 'com.android.application'
android {
compileSdkVersion 26
defaultConfig {
applicationId "com.example.atumanin.testandroidannotations"
minSdkVersion 15
targetSdkVersion 26
versionCode 1
versionName "1.1.18"
javaCompileOptions {
annotationProcessorOptions {
includeCompileClasspath true
}
}
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'io.reactivex.rxjava2:rxjava:2.1.6'
implementation 'io.reactivex.rxjava2:rxandroid:2.0.1'
}
and this is my project gradle:
buildscript {
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.0.0'
}
}
allprojects {
repositories {
google()
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
If I try to build project, I get error:
Could not resolve io.reactivex.rxjava2:rxjava:2.1.6.
and
Could not resolve io.reactivex.rxjava2:rxandroid:2.0.1.
I tried to clean, to rebuild the project and to invalidate cache. Nothing helps. I also tried to use compile instead of implementation. I also tried different versions of both libraries, also without success.

It will give error because official release for rxjava is 2.1.5.
simply change below lines of code
implementation 'io.reactivex.rxjava2:rxandroid:2.0.1'
implementation 'io.reactivex.rxjava2:rxjava:2.1.5'
Official documentation

I found the solution. The issue was my proxy, it blocks https and I need to use the http version of repository. So instead of:
repositories {
jcenter()
}
I use now:
repositories {
jcenter {
url "http://jcenter.bintray.com/"
}
}
and it compiles now.

Changing
implementation 'io.reactivex.rxjava2:rxjava:2.1.6'
implementation 'io.reactivex.rxjava2:rxandroid:2.0.1'
to
api 'io.reactivex.rxjava2:rxjava:2.x.x'
api 'io.reactivex.rxjava2:rxandroid:2.0.1'
worked for me

#link https://github.com/ReactiveX/RxAndroid
// Because RxAndroid releases are few and far between, it is recommended you also
// explicitly depend on RxJava's latest version for bug fixes and new features.
// (see https://github.com/ReactiveX/RxJava/releases for latest 3.x.x version)
// Step 1 : in side build.gradle(Module:app)
implementation 'io.reactivex.rxjava2:rxandroid:2.0.1'
// Step 2 : in side build.gradel(Project:ProjectName)
allprojects {
repositories {
google()
jcenter()
maven { url "https://jitpack.io" }
jcenter {
url "http://jcenter.bintray.com/"
}
}
}

Just try to uncheck the offline mode in your
Settings -> Gradle
and try again.That's worked for me

Can't import project to android studio

I'm trying to use this library
I've added
compile 'net.rdrei.android.dirchooser:library:2.0#aar'
to dependecies.
My top level build file
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath 'com.android.tools.build:gradle:0.8.+'
}
}
allprojects {
repositories {
mavenCentral()
}
}
And it gives me error "failed to refresh gradle project" with reference to the project, that I'm trying to import.

This library is not on Central Maven as aar.
Check here:
http://search.maven.org/#search%7Cga%7C1%7Cnet.rdrei.android.dirchooser
it is an apklib format.
I've checked the snapshots repo, and here you can find this library.
https://oss.sonatype.org/content/repositories/snapshots/net/rdrei/android/dirchooser/library/
To use the snap repo you have to change your script:
repositories {
mavenCentral()
maven {
url "https://oss.sonatype.org/content/repositories/snapshots"
}
}
Then add you depencency, for example
compile 'net.rdrei.android.dirchooser:library:2.1-SNAPSHOT'

The answer provided by #unify #GabrieleMariotti and #AndyJoiner is correct. However it confused be since we have two gradle files - a project level gradle and a inner gradle (where you write your dependencies). The solution is to add the code suggested by #AndyJoiner inside your inner gradle.
Since I was confused as to where to add the code, which took me an hour to figure out, I don't want it to happen to others. So, I am posting my both gradle files.
Project Level Gradle
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:1.0.0'
}
}
allprojects {
repositories {
jcenter()
}
}
Inner Gradle
apply plugin: 'com.android.application'
android {
compileSdkVersion 21
buildToolsVersion "21.1.2"
defaultConfig {
applicationId "com.itcse.materialdesignsearchviewlikegoogleplay"
minSdkVersion 15
targetSdkVersion 21
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
// Add the code for repositories here
repositories {
mavenCentral()
maven { url "https://oss.sonatype.org/content/repositories/snapshots" }
maven { url 'http://guardian.github.com/maven/repo-releases' }
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:21.0.3'
// Add the dependencies here
compile 'com.quinny898.library.persistentsearch:library:1.0.0-SNAPSHOT#aar'
}
Hope this help others in future.

This worked for me:
repositories {
maven { url 'https://oss.sonatype.org/content/repositories/snapshots' }
You can find the repository here
https://oss.sonatype.org/#nexus-search;quick~dirchooser

After trying the answer by Gabriele and a bit more digging, this worked for me
repositories {
mavenCentral()
maven { url "https://oss.sonatype.org/content/repositories/snapshots" }
maven { url 'http://guardian.github.com/maven/repo-releases' }
}
dependencies {
compile 'net.rdrei.android.dirchooser:library:2.2-SNAPSHOT#aar'
}