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After changing build.gradle in app module, I get error: cannot find symbol method setVolumeControlStream

My new build.gradle is
apply plugin: 'com.android.application'
android {
compileSdkVersion 27
buildToolsVersion '27.0.3'
defaultConfig {
applicationId "com.example.koran.myapplication"
minSdkVersion 16
targetSdkVersion 27
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
sourceSets { main { res.srcDirs = ['src/main/res', 'src/main/res/animations'] } }
}
dependencies {
implementation fileTree(include: ['*.jar'], dir: 'libs')
androidTestImplementation('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
implementation 'com.android.support:appcompat-v7:27.0.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.2'
testImplementation 'junit:junit:4.12'
implementation 'com.google.android.gms:play-services-games:15.0.1'
}
I changed compileSdkVersion to 27, up from 26 (same thing for targetSdkVersion).
The only compile error is get is error: cannot find symbol method setVolumeControlStream(int). This method is called from the onStart() method of my MainActivity (which extends AppCompatActivity). I only started getting this error once I changed my gradle file. I'm pretty sure it's because of this line:
implementation 'com.android.support:appcompat-v7:27.0.0'
I get an error from this line saying
All com.android.support libraries must use the exact same version specification
What does this mean? Why is setVolumeControlStream not recognized?

Error:(246, 5) error: duplicate value for resource 'attr/rippleColor' with config ''

When I upgraded android studio to version 3 I've got this problem:
Error:(246, 5) error: duplicate value for resource 'attr/rippleColor' with config ''.
this is my gradle:
android {
compileSdkVersion 26
buildToolsVersion '26.0.2'
defaultConfig {
applicationId "com.faravani.app"
minSdkVersion 16
targetSdkVersion 26
versionCode 4
versionName "2.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
vectorDrawables.useSupportLibrary = true
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:26.1.0'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
compile 'com.android.support:design:26.1.0'
testCompile 'junit:junit:4.12'
}
please help me i don't know what should I do.

Try to rename rippleColor attribute in your attr file (I presume attrs.xml). It is probably in conflict with some android theme attribute .

change
supportLibraryVersion = "25.4.0"
to
supportLibraryVersion = "25.3.1"
works for me

Android studio Gradle project sync completed with errors

I have recently started learning android studio and install android studio on linux mint 18 and got stuck at this problem. My build.gradle file contains this code
apply plugin: 'com.android.application'
android {
compileSdkVersion 25
buildToolsVersion "25.0.2"
defaultConfig {
applicationId "com.example.android.justjava"
minSdkVersion 15
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 'com.android.support:appcompat-v7:25.+'
compile fileTree(include: ['*.jar'], dir: 'libs')
androidTestCompile('com.android.support.test.espresso:espresso-core:2.0', {
exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'junit:junit:4.12'
}

Just Replace your compile 'com.android.support:appcompat-v7:25.+'
with newest Dependency like compile 'com.android.support:appcompat-v7:25.3.1'

Failed to resolve javax

I created a new Application and I am getting these errors
This is my app level
apply plugin: 'com.android.application'
android {
compileSdkVersion 24
buildToolsVersion "24.0.2"
defaultConfig {
applicationId "com.vfirst.genie"
minSdkVersion 15
targetSdkVersion 24
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-v7:24.2.1'
testCompile 'junit:junit:4.12'
}

Download the latest version of Android Support Repository, Android Support Library and Google Repository from your SDK Manager.
I think it should solve the issue.

Error:Failed to resolve app.support v7-23.0.3 in android

A problem occurred configuring project app could not resolve all the dependicies for configurations app:debug could not find com.app.support v7-23.0.3
My gradle bundle file is as follows
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion '23.0.3'
defaultConfig {
applicationId "com.app.quiz.activity"
minSdkVersion 11
targetSdkVersion 18
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
productFlavors {
}
}
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.0.3'
compile 'com.android.support'
}