Conflict with dependency 'com.android.support:support-annotations'. Resolved versions for app (23.1.0) and test app (23.0.1) differ

Question

When building I get the following error:

Conflict with dependency \'com.android.support:support-annotations\'. Resolved versions for app (23.1.0) and test a         


        

Answer 1

I was getting the same error today:

Error:Execution failed for task ':app:preDebugAndroidTestBuild'.> Conflict with dependency 'com.android.support:support-annotations' in project ':app'. Resolved versions for app (26.1.0) and test app (27.1.1) differ.

What I did:

• I simply updated all my dependencies to 27.1.1 instead of 26.1.0
• Also, updated my compileSdkVersion 27 and targetSdkVersion 27 which were 26 earlier

And com.android.support:support-annotations error was gone!

For Ref:

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:27.1.1'
    implementation 'com.android.support.constraint:constraint-layout:1.1.0'
    implementation 'com.android.support:design:27.1.1'
    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'
}