Android Studio 3.1: mixing versions can lead to runtime crashes

Question

Have recently upgraded to Android Studio 3.1, and at the same time I\'m trying the Android P preview.

I\'m getting the following error on compiling:

Answer 1

You need to override the conflicted libraries by adding the conflicted libraries to your dependencies block

dependencies {
implementation 'com.android.support:appcompat-v7:28.0.0-alpha1'
implementation 'com.android.support:customtabs:28.0.0-alpha1'
implementation 'com.android.support:support-vector-drawable:28.0.0-alpha1'
implementation 'com.android.support:support-media-compat:28.0.0-alpha1'
implementation 'com.android.support:support-v4:28.0.0-alpha1'

Answer 2

add in dependencies of build.grad (Module.app)

dependencies {
 //noinspection GradleCompatible
 implementation 'com.android.support:appcompat-v7:28.0.0'
 implementation 'com.android.support:animated-vector-drawable:28.0.0'
 implementation 'com.android.support:support-media-compat:28.0.0'
}

Answer 3

In my case adding support-v4 helped me to got loose of warning.

dependencies {
    implementation 'com.android.support:appcompat-v7:28.0.0'
    implementation 'com.android.support:animated-vector-drawable:28.0.0'
    implementation 'com.android.support:support-media-compat:28.0.0'
    implementation 'com.android.support:support-v4:28.0.0'

    // other dependencies
}

Answer 4

Some dependency — perhaps playLicensing — has a transitive dependency on at least support-media-compat, for version 26.1.0.

To work around this:

• Identify each Support Library artifact that shows up in "External Libraries" that is older than 28.0.0-alpha1. Based on the error, those older ones should all be 26.1.0, and it will be at least support-media-compat.

• For each of those, add your own implementation line to your dependencies, requesting that artifact, but for 28.0.0-alpha1. This will cause Gradle to use the newer artifact, which happens to be what you want.

• Hope that whatever is depending on those older artifacts will survive with the newer artifacts.

So, at minimum, you are adding:

implementation 'com.android.support:support-media-compat:28.0.0-alpha1'

Answer 5

In my case I resolved it by adding this below the error line.

implementation 'com.android.support:support-media-compat:28.0.0'
implementation 'com.android.support:support-v4:28.0.0'

Answer 6

Are you using a firebase in your project? Using firebase core or firebase app indexing seem to be causing the problem. I was having the same problem, but commenting on firebase packages makes the error to go away

//    implementation 'com.google.firebase:firebase-core:16.0.8'
//    implementation 'com.google.firebase:firebase-ads:17.2.0'
//    implementation 'com.google.firebase:firebase-appindexing:17.1.0'