Error: Test instrumentation process crashed. But there is no /files/ directory

defaultConfig {
...
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
        testInstrumentationRunnerArguments clearPackageData: 'true'
}
...
    testOptions {
        unitTests {
            includeAndroidResources = true
            returnDefaultValues = true
        }
        execution 'ANDROIDX_TEST_ORCHESTRATOR'
    }
...
dependencies {
    androidTestUtil 'androidx.test:orchestrator:1.1.1'
    androidTestImplementation('com.schibsted.spain:barista:2.7.1') {
        exclude group: 'com.android.support'
    }
    // Core library
    testImplementation 'androidx.test:core:1.1.0'
    androidTestImplementation 'androidx.test:core:1.1.0'

    // Assertions
    testImplementation 'androidx.test.ext:truth:1.1.0'
    androidTestImplementation 'androidx.test.ext:truth:1.1.0'

    // JUnit
    testImplementation 'androidx.test.ext:junit:1.1.0'
    androidTestImplementation 'androidx.test.ext:junit:1.1.0'

    // JUnitRunner
    testImplementation 'androidx.test:runner:1.1.1'
    androidTestImplementation 'androidx.test:runner:1.1.1'

    // Test helpers for LiveData
    testImplementation 'android.arch.core:core-testing:2.0.0'
    androidTestImplementation 'android.arch.core:core-testing:2.0.0'

    // UI /test
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
    androidTestImplementation 'androidx.test.espresso:espresso-contrib:3.1.1'
    androidTestImplementation 'androidx.test.espresso:espresso-intents:3.1.1'
    implementation 'androidx.test.espresso:espresso-idling-resource:3.1.1'
    implementation 'com.jakewharton.espresso:okhttp3-idling-resource:1.0.0'

    // Robolectric/Mockito
    testImplementation 'org.robolectric:robolectric:4.1'
    testImplementation 'org.mockito:mockito-core:2.23.4'
    androidTestImplementation("org.mockito:mockito-core:2.23.4")
    androidTestImplementation("org.mockito:mockito-android:2.23.4")

    // Rest mock
    testImplementation "com.squareup.retrofit2:retrofit-mock:$retrofitVersion"
    testImplementation 'com.squareup.okhttp3:mockwebserver:3.12.1'
}