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How to fix gradle when this error appear?

I started a new project and put fire-base cloud:
apply plugin: 'com.android.application'
apply plugin: 'android-apt'
android {
compileSdkVersion 28
buildToolsVersion "28.0.3"
defaultConfig {
applicationId "android.example.com.squawker"
minSdkVersion 16
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'])
androidTestImplementation('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
//noinspection GradleCompatible
implementation 'com.android.support:appcompat-v7:28.0.0'
testImplementation 'junit:junit:4.12'
// RecyclerView
implementation 'com.android.support:recyclerview-v7:28.0.0'
// Schematic dependencies for ContentProvider
apt 'net.simonvt.schematic:schematic-compiler:0.6.3'
implementation 'net.simonvt.schematic:schematic:0.6.3'
// Preferences Dependencies
implementation 'com.android.support:preference-v7:28.0.0'
// Firebase dependency
implementation 'com.google.firebase:firebase-messaging:17.3.4'
}
// Apply the Google Services plugin. Make sure to add the google-services.json file in the app
// folder. You download it from the Firebase console
apply plugin: 'com.google.gms.google-services'
and this error apeared:
WARNING: API 'variant.getJavaCompile()' is obsolete and has been replaced with 'variant.getJavaCompileProvider()'.
It will be removed at the end of 2019.
For more information, see https://d.android.com/r/tools/task-configuration-avoidance.
To determine what is calling variant.getJavaCompile(), use -Pandroid.debug.obsoleteApi=true on the command line to display a stack trace.
Affected Modules: app

This probably because of apt plugin which is already obsolete. So, you need to remove the following:
apply plugin: 'android-apt'
then change the following:
apt 'net.simonvt.schematic:schematic-compiler:0.6.3'
with:
annotationProcessor 'net.simonvt.schematic:schematic-compiler:0.6.3'

Similar to API 'variant.getExternalNativeBuildTasks()' is obsolete and has been replaced with 'variant.getExternalNativeBuildProviders() Happy Coding!

Jsoup program type already present

I am using JSoup to parse my HTML response in my Java application but when I add the implementation I get the following:
Program type already present: org.jsoup.Connection$KeyVal
Message{kind=ERROR, text=Program type already present:
org.jsoup.Connection$KeyVal, sources=[Unknown source file], tool
name=Optional.of(D8)}
I am wondering has anyone experienced this before? I will add my full build.gradle below, I am running the most current SDK.
apply plugin: 'com.android.application'
android { compileSdkVersion 28 defaultConfig {
applicationId "uareloadedapp"
minSdkVersion 26
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'
} } productFlavors { } }
dependencies { implementation fileTree(dir: 'libs', include: ['*.jar']) implementation (name: 'wikitudesdk', ext:'aar') implementation 'com.google.ar:core:1.1.0' implementation 'com.android.support:appcompat-v7:28.0.0' implementation 'org.altbeacon:android-beacon-library:2.15.2' implementation 'com.android.support.constraint:constraint-layout:1.1.3' 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' implementation 'com.android.support:recyclerview-v7:28.0.0' implementation 'com.squareup.picasso:picasso:2.5.2' implementation "com.android.support:support-core-utils:28.0.0" implementation 'com.android.support:support-v4:28.0.0' implementation 'pl.droidsonroids.gif:android-gif-drawable:1.2.+' implementation 'org.jsoup:jsoup:1.11.3'
} repositories { flatDir{
dirs 'libs' } }

Check if there is anything that you have added as a dependency and is also in the libs folder. That was my problem. deleting the file from the lib folder fixed it

Why android studio give an error when i add dependency?

I'm building a face detection Android app. When I add dependency inside the app/build.gradle it gives me an error. Here is my gradle file:
apply plugin: 'com.android.application'
android {
compileSdkVersion 28
buildToolsVersion "28.0.3"
defaultConfig {
applicationId "com.example.android.emojify"
minSdkVersion 15
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'])
androidTestImplementation('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support ', module: 'support-annotations'
})
implementation 'com.android.support:design:28.0.0'
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.google.android.gms:play-services-vision:10.2.0'
testImplementation 'junit:junit:4.12'
}
Error is reported in the following lines:
implementation 'com.android.support:design:28.0.0'
implementation 'com.android.support:appcompat-v7:28.0.0'

Show us a screenshot of your error or format your error to easier reading, just click code button and paste it.
Edit: thank you :)
I think you should use refresh gradle after any changes in gradle.build and maybe you got this error because your build tools sdk is 28.0.3 and you want to use tool from sdk 28.0.0, just change compile sdk to 28.0.0 and click sync gradle on actionbar.

Your buildToolVersion is greater than your design and appcompat-v7.
Try to change,
implementation 'com.android.support:design:28.0.3' //or greater than 28.0.3
implementation 'com.android.support:appcompat-v7:28.0.3' //or greater than 28.0.3
connect to the internet and then build your project. Problem will be solved.

Android Studio Failed to resolve: com.android.support:appcompat-v7.28.0.0

I am getting this error, Failed to resolve: com.android.support:appcompat-v7.28.0.0 I have been looking on here and tried changing it to other variations of that line but so far no luck, why do I keep getting this error?
apply plugin: 'com.android.application'
android {
compileSdkVersion 28
defaultConfig {
applicationId "com.example.myapp"
minSdkVersion 15
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.android.support.constraint:constraint-layout:1.1.3'
implementation 'com.google.firebase:firebase-auth:11.6.0'
implementation 'com.google.firebase:firebase-core:16.0.3'
implementation 'com.google.firebase:firebase-database:16.0.1'
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'

The issue is with the appcompat-v7 dependency that you have added to the build.gradle.
Change implementation 'com.android.support:appcompat-v7.28.0.0' to implementation 'com.android.support:appcompat-v7:28.0.0'
Notice the : between appcompat-v7 and 28.0.0 that separates the artifact name and the version.

If we don't consider the typo in :
implementation 'com.android.support:appcompat-v7.28.0.0'
Change it to:
implementation 'com.android.support:appcompat-v7:28.0.0'
Then, you probably should use the latest version for the Firebase dependencies to avoid those Please fix the version errors:
implementation 'com.google.firebase:firebase-auth:16.0.4'
implementation 'com.google.firebase:firebase-core:16.0.4'
implementation 'com.google.firebase:firebase-database:16.0.3'
Then rebuild the project. Also, remember to use latest gradle to avoid couldn't found such dependency or etc.
Inside build.gradle of the project (inside your project root directory):
dependencies {
classpath 'com.android.tools.build:gradle:3.2.0'
// replace it with the 3.2.0 version
...
classpath 'com.google.gms:google-services:4.1.0' // update this too
}

Failed to resolve: com.android.support:appcompat-v7:28.+ , Error: more than one library with package name 'android.support.graphics.drawable'

I'm new to Android Studio, I tried everything to solve this problem "Failed to resolve: com.android.support:appcompat-v7:28.+ "
I tried to clean project , invalidate cash/restart and removing .idea and still the same
I'm using android studio 2.2.1 for a learning reason , and I updated it to android studio 3 and there a multiple rendering problems so I returned back to version 2.2.1
I tried to add
maven {
url 'https://maven.google.com/'
name 'Google'
}
So,It stuck with another problem
"Error:Execution failed for task ':app:processDebugResources'.
> Error: more than one library with package name 'android.support.graphics.drawable'"
Error Photo
Finally I tried to change "appcompat-v7:28.+" to "appcompat-v7:27" and it' works but still tell me that i should use the same library to avoid mistakes
This is my Gradle code:
apply plugin: 'com.android.application'
android {
compileSdkVersion 28
buildToolsVersion "28.0.1"
defaultConfig {
applicationId "com.example.aimlive.myapplication"
minSdkVersion 15
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 {
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-v7:28.+'
testCompile 'junit:junit:4.12'
}

Replace 'com.android.support:appcompat-v7:28+' by 'com.android.support:appcompat-v7:28.0.0'
and add below dependencies
implementation 'com.android.support:support-v4:28.0.0'
implementation 'com.android.support:support-media-compat:28.0.0'
implementation 'com.android.support:animated-vector-drawable:28.0.0'
implementation 'com.android.support:customtabs:28.0.0'

try adding this to your code:
repositories {
jcenter()
maven { // <-- Add this
url 'https://maven.google.com/'
}
}
Update: Now you moved on to another error:
Error: more than one library with package name 'android.support.graphics.drawable ...
To fix this, you need to change compile to implementation in dependencies part.

if you are using
compileSdkVersion 28
add in your dependencies below code
implementation 'com.android.support:appcompat-v7:28.0.0-alpha'
this is the link

Try this one, hope it is working
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.android.support:support-v4:28.0.0'
implementation 'com.android.support:design:28.0.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
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'
dependencies
classpath 'com.android.tools.build:gradle:3.1.4'
android
compileSdkVersion 28
minSdkVersion 21
targetSdkVersion 28

Try this code, hope it will be working. Thanks
build.gradle (Project)
dependencies {
classpath 'com.android.tools.build:gradle:3.1.4'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
build.gradle (app)
android {
compileSdkVersion 28
buildToolsVersion '28.0.3'
defaultConfig {
applicationId "YOUR_PACKAGE_NAME"
minSdkVersion 15
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
renderscriptTargetApi 19
renderscriptSupportModeEnabled true
// Enabling multidex support.
multiDexEnabled true
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
lintOptions {
abortOnError false
}
}
dependencies check for implementation
dependencies {
implementation fileTree(include: ['*.jar'], dir: 'libs')
}

I found that 'com.android.support:animated-vector-drawable' and 'com.android.support:support-vector-drawable' have a same package name in support library version 28.0.0. Normally this does not make the problem.
But if you have the following line in gradle.properties
android.uniquePackageNames = true
you will see the error
more than one library with package name 'android.support.graphics.drawable'"
If you should use the uniquePackageNames option, use androidx instead of support library 28.0.0.

In case someone like me stuck for hours and find out the you have to check the maven dependency "com.android.support:appcompat-v7:28.0.0". remove the "+" sign as gradle does not like it for unpredictable versions. so i had to check the maven repository and found that i was compiling with 29 and 29 does not exist. please check below link
[""][1]
apply plugin: 'com.android.application'
android {
compileSdkVersion 28
defaultConfig {
applicationId "com.example.amirkhan.birthday"
minSdkVersion 15
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 'com.android.support:appcompat-v7:28.0.0'
}
2)) Maven should be included.
allprojects {
repositories {
jcenter()
maven {
url "https://maven.google.com"
}
google()
}
}
Wallah the problem is solved
[1]: https://mvnrepository.com/artifact/com.android.support/appcompat-v7/28.0.0