Program type already present: Android.arch.lifecycle.LiveData$1

问题

Getting error: Program type already present: Android.arch.lifecycle.LiveData$1 first, it was showing Warning: Configuration 'compile' is obsolete and has been replaced with 'implementation' and 'api'

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:27.1.0'

    implementation 'com.android.support.constraint:constraint-layout:1.1.0'
    implementation 'com.google.firebase:firebase-auth:11.4.0'
    implementation 'com.google.firebase:firebase-database:11.4.0'
    implementation 'com.google.firebase:firebase-messaging:11.4.0'
    implementation 'com.android.support:support-v4:27.1.0'
    implementation 'com.google.android.gms:play-services-auth:11.4.0'
    implementation 'com.google.android.gms:play-services-ads:11.4.0'
    implementation 'com.google.android.gms:play-services-location:11.4.0'
    compile 'com.squareup.picasso:picasso:2.5.2' //for Inmobi
    compile name: 'adcolony-sdk-3.2.1', ext: 'aar'
    compile name: 'mmedia-6.4.0', ext: 'aar'
    compile name: 'mobvista_alphab', ext: 'aar'
    compile name: 'mobvista_appwall', ext: 'aar'
    compile name: 'mobvista_appwallext', ext: 'aar'
    compile name: 'mobvista_common', ext: 'aar'
    compile name: 'mobvista_interstitial', ext: 'aar'
    compile name: 'mobvista_mvdownloads', ext: 'aar'
    compile name: 'mobvista_mvjscommon', ext: 'aar'
    compile name: 'mobvista_mvnative', ext: 'aar'
    compile name: 'mobvista_nativeex', ext: 'aar'
    compile name: 'mobvista_offerwall', ext: 'aar'
    compile name: 'mobvista_playercommon', ext: 'aar'
    compile name: 'mobvista_reward', ext: 'aar'
    compile name: 'mobvista_videocommon', ext: 'aar'
    compile name: 'mobvista_videofeeds', ext: 'aar'

    testImplementation 'junit:junit:4.12'
    implementation 'com.firebaseui:firebase-ui-database:2.4.0'
    implementation 'com.android.support:cardview-v7:27.1.0'
    implementation 'com.android.support:recyclerview-v7:27.1.0'
    implementation 'com.android.support:design:27.1.0'


    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
}


apply plugin: 'com.google.gms.google-services'

回答1:

there are the some internal conflict with firebase ui dependancy thats why this error is coming up, may be it will be removed from future update.

i have soled this error by adding following dependency line in app level gradle file implementation "android.arch.core:runtime:1.1.1"

Hope so it will someone how facing same problem

来源：https://stackoverflow.com/questions/50095921/program-type-already-present-android-arch-lifecycle-livedata1

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