We Keep Coding

Android Studio error: "6 issues were found when checking AAR metadata"

This is a Gradle error which I get when running the empty "hello world" (building from Empty Activity template) without any added code,
Here is the error:
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':app:checkDebugAarMetadata'.
> A failure occurred while executing com.android.build.gradle.internal.tasks.CheckAarMetadataWorkAction
> 6 issues were found when checking AAR metadata:
1. Dependency 'androidx.appcompat:appcompat-resources:1.6.0' requires libraries and applications that
depend on it to compile against version 33 or later of the
Android APIs.
:app is currently compiled against android-32.
Also, the maximum recommended compile SDK version for Android Gradle
plugin 7.2.0 is 32.
Recommended action: Update this project's version of the Android Gradle
plugin to one that supports 33, then update this project to use
compileSdkVerion of at least 33.
Note that updating a library or application's compileSdkVersion (which
allows newer APIs to be used) can be done separately from updating
targetSdkVersion (which opts the app in to new runtime behavior) and
minSdkVersion (which determines which devices the app can be installed
on).
2. Dependency 'androidx.appcompat:appcompat:1.6.0' requires libraries and applications that
depend on it to compile against version 33 or later of the
Android APIs.
:app is currently compiled against android-32.
Also, the maximum recommended compile SDK version for Android Gradle
plugin 7.2.0 is 32.
Recommended action: Update this project's version of the Android Gradle
plugin to one that supports 33, then update this project to use
compileSdkVerion of at least 33.
Note that updating a library or application's compileSdkVersion (which
allows newer APIs to be used) can be done separately from updating
targetSdkVersion (which opts the app in to new runtime behavior) and
minSdkVersion (which determines which devices the app can be installed
on).
I will stop the error messages after these two as I suspect fixing one will fix all six.
Below is my build.gradle (:app)
plugins {
id 'com.android.application'
}
android {
compileSdk 32
defaultConfig {
applicationId "com.enetapplications.empty"
minSdk 28
targetSdk 32
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
}
dependencies {
implementation 'androidx.appcompat:appcompat:1.6.0'
implementation 'com.google.android.material:material:1.7.0'
implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
testImplementation 'junit:junit:4.13.2'
androidTestImplementation 'androidx.test.ext:junit:1.1.5'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
}
This error first occurred while building an app and I was only working with the xml and was ready to begin the java - then for testing I opened a blank "empty" project and received this exact same error thus seems something to do with how Android Studio is being configured.

Update your version to 33 as below
compileSdk 33
defaultConfig {
applicationId "com.enetapplications.empty"
minSdk 28
targetSdk 33
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}

Go to your build.gradle(:app), increase your compileSdk and targetSdk.
Write there:
compileSdk 33
targetSdk 33
Then at the top you will see 'Sync Now' Option, click on it. Now your problem has been resolved.

How do I determine which Android Gradle Plugin version is needed for my target SDK?

I am trying to sync my project with the Gradle files but every time I do it I get the same error message:
WARNING: The specified Android SDK Build Tools version (27.0.0) is ignored, as it is below the minimum supported version (28.0.3) for Android Gradle Plugin 3.2.1.
My target SDK version is API 24 since I am developing an app for an Android 7.0 (Nougat) operating system.
I looked over the Android Developers site: https://developer.android.com/ and I can't find anything about what Android Gradle Plugin corresponds with which target SDK version. I've read several Stack Overflow questions where people asked about which specific Android Gradle Plugin they need for their project but none of the questions were about where to go to find that information.
Can anyone tell me how to know which Android Gradle plugin version I need?
Here are the two build.gradle files in my app folder:
(Module: app)
apply plugin: 'com.android.application'
android {
compileSdkVersion 24
buildToolsVersion '27.0.0'
defaultConfig {
applicationId "com.android.example.favoritetoys"
minSdkVersion 14
targetSdkVersion 24
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
debuggable true
}
debug {
applicationIdSuffix ".debug"
debuggable true
}
}
}
(Project)
buildscript {
repositories {
jcenter()
google()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.2.1'
classpath 'com.google.gms:google-services:3.2.1'
}
}
allprojects {
String osName = System.getProperty("os.name").toLowerCase();
if (osName.contains("windows")) {
buildDir = "C:/tmp/${rootProject.name}/${project.name}"
}
repositories {
jcenter()
google()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}

Since AGP (Android Gradle Plugin) version 3.0.0, there is a minimum version requirement for the Android Build Tools version, which is a designed behaviour.
See
http://google.github.io/android-gradle-dsl/current/com.android.build.gradle.AppExtension.html#com.android.build.gradle.AppExtension:buildToolsVersion
So, if you want to force your project to use an older version of build tools, i am afraid that you need to downgrade your AGP to a version below 3.0.0.
But, question for you is why do have to use the older build tools?
As seen from https://developer.android.com/studio/releases/build-tools.
You should always keep your Build Tools component updated by
downloading the latest version using the Android SDK Manager.
For your cross reference about the differences among the three different version configurations in build.gradle, i.e. compileSdkVersion, targetSdkVersion and minSdkVersion.
What is the difference between compileSdkVersion and targetSdkVersion?
What is the difference between min SDK version/target SDK version vs. compile SDK version?
For your case, maybe you only need to change your targetSdkVersion to 28.

what is a dependency for android.media.tv

I try to move android TV app to Android studio. When I try to compile it, I had some import errors. I couldn't find the dependency that I can add to build.gradle to fix these problem. The list of the imports are:
import android.media.tv.TvContentRatingSystemInfo;
import android.media.tv.TvContract.WatchedPrograms;
import com.android.tv.tuner.data.nano.Track.AtscCaptionTrack;
import com.android.tv.tuner.data.nano.Track.AtscAudioTrack;
import com.android.tv.tuner.data.nano.Channel;
The build.gradle is :
apply plugin: 'com.android.application'
android {
compileSdkVersion 26
buildToolsVersion "26.0.1"
defaultConfig {
applicationId "com.android.tv"
minSdkVersion 23
targetSdkVersion 23
versionCode 1
versionName "1.0"
ndk {
moduleName "libtunertvinput_jni"
}
}
sourceSets {
main {
res.srcDirs = ['src/main/res', 'src/main/usbtuner-res']
jni.srcDirs = []
}
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
}
debug {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile files('libs/exoplayer.jar')
compile project(':common')
compile 'com.android.support:palette-v7:+'
compile 'com.android.support:support-v4:+'
compile 'com.android.support:support-annotations:+'
}

You can't import these because they have #SystemApi annotation. You can check this for the source code of TvContentRatingSystemInfo. I have also checked WatchedPrograms and it also has #SystemApi annotation. I have not checked the other three.
You need to be system app to access these. As you can see here, you need to push your app in the the \system\ folder. You can find detailed information about AOSP build system here.
Solution :
Changing your android.jar to the .jar in this github should enable you to access system API. The reason is your standard android.jar doesn't have system API. So you need to get framework.jar (by adb pull) from emulator and combine it with core.jar then you can have new android.jar which contains system API (system methods and classes are available in the framework.jar from emulator).
Moreover, you should push your apk to \system\priv-app\ folder to access some system API but I don't know why I can access system API without pushing my apk to \system\priv-app\ when I use .jar from that github account.
I feel like I don't write quite clearly but at least now you have more understandings of what you're facing.

android.media.tv and com.android.tv are part of Android SDK. So you don't need to include any additional libraries in gradle.build file.
Just make sure to:
Update your SDK tools to version 24.0.0 or higher
and
Update your SDK with Android 5.0 (API 21) or higher
Example,
android {
compileSdkVersion 26
buildToolsVersion "26.0.1"
defaultConfig {
applicationId "com.example.tvapp"
minSdkVersion 15
targetSdkVersion 26
versionCode 1
versionName "1.0"
}
}

use this in your dependencies "com.android.support:support-media-compat:26.0.2"
and also use tool version "26.0.1"
compiled SDK version 26.

You can add dependencies in app level gradle.
compile 'com.google.android.libraries.tv:companionlibrary:0.1'

Eclipse project move to Android Studio. There is error in minsdk version

I imported my project from Eclipse to to Android Studio. When I built project I take error message below:
Error:Execution failed for task ':app:processDebugManifest'.
> Manifest merger failed : uses-sdk:minSdkVersion 10 cannot be smaller than version 14 declared in library [com.google.android.gms:play-services:11.0.0] C:\Users\Ahmet\Documents\edx\Android\WonderkidandTransfersforFM17\app\build\intermediates\exploded-aar\com.google.android.gms\play-services\11.0.0\AndroidManifest.xml
Suggestion: use tools:overrideLibrary="com.google.android.gms.play_services" to force usage
I tried change minsdk version and I tried add tools:overrideLibrary="com.google.android.gms.play_services" in manifest. I can't solve this problem.
Manifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.ahmety.wonderkidandtransfersforfm17"
android:versionCode="24"
android:versionName="1.3" >
<uses-sdk
android:minSdkVersion="10"
android:targetSdkVersion="17" />
build.gradle
apply plugin: 'com.android.application'
android {
compileSdkVersion 22
buildToolsVersion "25.0.2"
defaultConfig {
applicationId "com.ahmety.wonderkidandtransfersforfm17"
minSdkVersion 10
targetSdkVersion 17
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
}
}
productFlavors {
}
}
dependencies {
compile 'com.android.support:support-v4:22.2.1'
compile 'com.google.android.gms:play-services:+'
compile files('libs/OneSignalSDK.jar')
}

You do not need a Jar file for OneSignal.
compile 'com.onesignal:OneSignal:3.5.7'
And never use a + as a version or compile all the Google Play Services
compile 'com.google.android.gms:play-services:+'
Please choose only those that you actually need.
https://developers.google.com/android/guides/setup#split
For example,
compile 'com.google.android.gms:play-services-ads:11.0.0'
Regarding the error, you need to change android:minSdkVersion="10" to be version 14, as it says.

You need to change the "minSdkVersion" from 10 to 14 in both "manifest" and "build.gradle". Otherwise you need to downgrade the version of "Google Play Services" library, I won't recommend that. I'll suggest you to just change the "minSdkVersion" from 10 to 14. I won't make difference to your app because I don't think people are still using Android devices of version 10.
Sync your project after changing the "minSdkVersion".

You are using a library which requires your minSdkVersion in the manifest to be at least 14. What you need to do is to set the minSdkVersion to 14 or more.

Cannot build a project in Android Studio

I am trying to import a project in Android Studio. This code supposedly works but I cannot seem to be able to build the project. This is the error that is produced when I am trying to build:
Error:Execution failed for task
':openCVLibrary2410:compileReleaseJava'.
Cannot find System Java Compiler. Ensure that you have installed a JDK (not just a JRE) and configured your JAVA_HOME system variable to
point to the according directory.
I have searched for a solution, but what I found was was either referring to eclipse or changing the jdk position for
File > other Settings > Default Project Structure
Which is not a valid solution for me because I checked my previous Android Studio Projects and all have the same position
This is the stacktrace:
* Exception is:
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':openCVLibrary2410:compileReleaseJava'.
mainProject 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:1.1.0'
}
}
allprojects {
repositories {
jcenter()
}
}
FaceRecognition Gradle
apply plugin: 'com.android.application'
android {
compileSdkVersion 21
buildToolsVersion "21.1.2"
defaultConfig {
applicationId "eu.upcom.recred.facerec"
minSdkVersion 9
targetSdkVersion 9
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
}
}
}
dependencies {
compile files('libs/javacpp.jar')
compile files('libs/javacv.jar')
compile project(':openCVLibrary2410')
}
openCV2410 gradle
apply plugin: 'com.android.library'
android {
compileSdkVersion 19
buildToolsVersion "21.1.2"
defaultConfig {
minSdkVersion 8
targetSdkVersion 8
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
}
}
}

While I was posting here the gradle files my eye caught something. I changed the build tools version from 'com.android.tools.build:gradle:1.1.0' to 'com.android.tools.build:gradle:2.2.2'and now it is building as it should

I had same problem, Here is problem on Java path. You can check you have set path of your java or JDK in system variable or not click Environment variable
Also check your Java JDK version.
Also this link have all details of How to set path.
I suggest to you can use this solution. It will be help to resolve your problem..