Unable to instantiate the client

While trying to instantiate OkHttpClient as follows inside the MainActivity of android:

OkHttpClient client = new OkHttpClient();

Stacktrace :

java.lang.BootstrapMethodError: Exception from call site #5 bootstrap method
    at okhttp3.internal.Util.<clinit>(Util.java:87)
    at okhttp3.internal.Util.immutableList(Util.java:234)
    at okhttp3.OkHttpClient.<clinit>(OkHttpClient.java:127)
    at com.amazonaws.transcribestreaminghttpclient.MainActivity.<init>(MainActivity.java:28)
    at java.lang.Class.newInstance(Native Method)
    at android.app.AppComponentFactory.instantiateActivity(AppComponentFactory.java:69)
    at android.support.v4.app.CoreComponentFactory.instantiateActivity(CoreComponentFactory.java:43)
    at android.app.Instrumentation.newActivity(Instrumentation.java:1215)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2831)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048)

Happens only on 3.13.1. Works well on 3.12.1. Any insights?

[JakeWharton]

Per the release notes, OkHttp requires that you enable Java 8 in your builds to function as of 3.13 and newer. You can learn more about how to enable this at https://developer.android.com/studio/write/java8-support.

You need to add something like

android {
    compileOptions {
        targetCompatibility = "8"
        sourceCompatibility = "8"
    }
}

to your application build.gradle.

[eddex]

@CHENGCHANGHU make sure to do a Clean Project (Build > Clean Project) after you change the build.gradle file.