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'
}
}
}

Setting up firebase on Android studio

I am trying to setup firebase on my android studio.I am using a 2.2.3 version.So this is my code in app.gradle file:
apply plugin: 'com.android.application'
android {
compileSdkVersion 25
buildToolsVersion "25.0.2"
defaultConfig {
applicationId "com.example.parth.carpool"
minSdkVersion 22
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-a`enter code here`nnotations'
})
compile 'com.android.support:appcompat-v7:25.2.0'
compile 'com.google.firebase:firebase-core:16.0.1'
testCompile 'junit:junit:4.12'
}
apply plugin: 'com.google.gms.google-services'
This is the error that I am receiving.
Error:(27, 13) Failed to resolve: com.google.firebase:firebase-core:16.0.1
This is my project.gradle 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:2.2.3'
classpath 'com.google.gms:google-services:4.0.0'
// 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
}
To correct this error I installed google play services, google repository, SDK platform,SDK platform tools etc. after I saw some of the posts on stackoverflow. Does anybody have a solution?

First you need to upgrade android studio to the newest version:
If you're not using Android Studio 3.1 to develop your app, you will need to upgrade in order to get the correct version checking behavior within the IDE.
https://android-developers.googleblog.com/2018/05/announcing-new-sdk-versioning.html
Then you need to use the following top level gradle file:
buildscript {
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.1.3'
classpath 'com.google.gms:google-services:4.0.1'
}
}
allprojects {
repositories {
google()
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}

Android Studio provides Awesome tool called Firebase Assistant, it handles any thing you need to setup firebase in you'r project
from Tools->Firebase
just pick which product you want and it'll do all the work for you

Make sure you are connected to a good network
Goto >file -> other settings -> Under build, execution, and deployment
-> you will see Gradle. uncheck the checkbox offline work. Then rebuild your project.
buildscript {
repositories {
// add google here
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:2.2.3'
classpath 'com.google.gms:google-services:4.0.0'
}
}
allprojects {
repositories {
google()
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}

Did you try on this link
In your root build.gradle file add the repo:
maven { url "https://maven.google.com" }

It depends upon you how you want to setup you can try both explicit way and implicit way of setting up firebase .the easiest one is implicit one which is given in android studio

android : cannot build project after upgrading Android Studio to 2.3

So, happily updated my Android Studio from stable version 2.2 to canary channel 2.3.
But, unfortunately, it has serious bug. Project is not able to build.
I tried opening my previous projects and also tried creating new sample application, I got same below error:
Gradle 'MyApplication' project refresh failed
Error:A problem occurred configuring project ':app'.
build.gradle(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:2.3.0-alpha1'
// 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(app):
apply plugin: 'com.android.application'
android {
compileSdkVersion 25
buildToolsVersion "25.0.0"
defaultConfig {
applicationId "com.example.chint.myapplication"
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'])
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:25.0.0'
compile 'com.android.support.constraint:constraint-layout:1.0.0-alpha7'
compile 'com.android.support:design:25.0.0'
testCompile 'junit:junit:4.12'
}
Am I the only one with this issue ?

So, be careful while this dialog appears:
Choose "Remind me later" and NOT "Update"
Stay with the build version you already have.
Incase, you pressed Update, so just rollback your Android Gradle Plugin classpath in build.gradle(project) to below one:
classpath 'com.android.tools.build:gradle:2.2.2'
This worked for me.

You should update your Android Studio gradle manually.
1° Step:
Follow this path and get your gradle version
C:\Users\[USER_NAME]\.gradle\wrapper\dists
Here you will get "gradle-X.X" (X- is version) in my case it was "gradle-3.3-all"
2° Step:
Go to the following link :
https://services.gradle.org/distributions/
Download your respective version zip file and just past it in the last folder with long random name.
C:\Users\[USER_NAME]\.gradle\wrapper\dists\gradle-x.x\55gk2rcmfc6p2dg9u9ohc31212 HERE
Now open the Android studio, I hope this will work.

I fought a similar issue and resolved it with the addition of 2 characters...
And after updating the gradle-wrapper.properties to target 3.2.1 everything was great for me
distributionUrl=https\://services.gradle.org/distributions/gradle-3.2.1-all.zip

If you import external libraries apply changes for "allprojects"
// 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:2.3.1'
// 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
}

Store the database on any outside server of an android app

I have used Firebase to store my database. But I am getting errors in setting it up for the application.
I have created a new project in the website and then configured it by using the package name.I also downloaded the json file and then copied it to the Project folder. And I also made changes to the Build.gradle file and module based gradle file.
Build.gradle file is as follows:
// 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'
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
}
}
allprojects {
repositories {
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
build.gradle (module:app)
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion "24.0.2"
defaultConfig {
applicationId "com.example.hsports.bandpop"
minSdkVersion 14
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-v7:23.4.0'
compile 'com.android.support:design:23.4.0'
compile 'com.google.firebase:firebase-storage:9.6.1'
}
apply plugin: 'com.google.gms.google-services'
I am getting the following errors on pressing sync button.
Error:Failed to resolve: com.google.firebase:firebase-core:9.6.1
Open File<br>Show in Project Structure dialog
Error:(26, 13) Failed to resolve: com.google.firebase:firebase-storage:9.6.1
Show in File<br>Show in Project Structure dialog
How to resolve this?

There is no Android class for this. Instead, you could build you own server/api to help you achieve it or you can use some third party services that help you easily sync/store your client data.
It's recommended to use Firebase . It's easy to use and cross platform.