Program type already present: android.support.v4.media.MediaBrowserCompat$CustomActionCallback

I completely new to Android Development and can't seem to resolve this error: "Error: Program type already present: android.support.v4.media.MediaBrowserCompat$CustomActionCallback"

This is my dependencies:

dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
implementation 'androidx.appcompat:appcompat:1.0.0-alpha1'
implementation 'androidx.constraintlayout:constraintlayout:1.1.2'
implementation 'androidx.lifecycle:lifecycle-extensions:2.0.0-alpha1'
implementation 'androidx.legacy:legacy-support-v4:1.0.0-alpha1'
implementation "android.arch.navigation:navigation-fragment:1.0.0-alpha01"
implementation "android.arch.navigation:navigation-ui:1.0.0-alpha01"


androidTestImplementation 'androidx.test:runner:1.1.0-alpha3'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0-alpha3'
testImplementation 'junit:junit:4.12'
}

I've googled some and ended up on the developer page about "Resolve duplicate class errors", but I'm still not able to fix this. Help would be very much appriciated!

aanshu

Option 1

Following worked for me Add the following in your gradle.properties file

android.useAndroidX = true
android.enableJetifier = false

Option 2 (if above does't work)

Android studio -> Navigate -> Class
Check include non-project classes
Copy full class path android.support.v4.accessibilityservice.AccessibilityServiceInfoCompat
See where it is used. You may need to remove, one of them.

Option 3 you might be including package which is including modules as well so exclude the support-v4 module with following method

implementation ('org.eclipse.paho:org.eclipse.paho.android.service:1.0.2') {
      exclude group: 'com.android.support', module:'support-v4'
}

You can analyze the conflicting modules using ./gradlew :YOURPROJECT:dependencies from a command line in your project repository. Check especially your third party libraries for occurences of "com.android.support-":

Then exclude the conflicting modules from these dependencies like:

   implementation ("com.jakewharton:butterknife:8.8.1") {
    exclude group: 'com.android.support', module: 'support-v4'
    exclude group: 'com.android.support', module: 'support-annotation'
    exclude group: 'com.android.support', module: 'support-compat'
}

Im using flutter, and Im adding some native libraries in android, I tried the solutions posted here, but the trick for me was android.enableJetifier = true instead false

So, adding the following code to the gradle.properties, my apps are running:

android.useAndroidX = true
android.enableJetifier = true

At least for me the issue was with the implementation 'androidx.legacy:legacy-support-v4:1.0.0-alpha1' dependency. I went into the menu in Android Studio to create a Blank Fragment in Kotlin just to see what that would look like and the dependency above was added.

Once i removed that dependency the error went away.

if you still getting error after

# gradle.properties
android.useAndroidX = true
android.enableJetifier = false

then you probably forgot about main activity that calling android.support.v7.app.AppCompatActivity change it to androidx.appcompat.app.AppCompatActivity

Some of your existing dependencies are using older versions of support library, try this

implementation 'androidx.legacy:legacy-support-v4:1.0.0-alpha1' {  
exclude group: 'com.android.support'  
exclude module: 'support-v4'
}

来源：https://stackoverflow.com/questions/51389533/program-type-already-present-android-support-v4-media-mediabrowsercompatcustom

标签

android

android-gradle