Butterknife: Butterknife 10 : java.lang.BootstrapMethodError: Exception from call site #1 bootstrap method

Created on 11 Feb 2019 · 10Comments · Source: JakeWharton/butterknife

I am using Butterknife 10.0.0 for one of my projects which involves a camerakit library. The app crashes and this is what I get from the log.

2019-02-12 00:18:21.289 20630-20630/? E/AndroidRuntime: FATAL EXCEPTION: main Process: com.seeme, PID: 20630 java.lang.BootstrapMethodError: Exception from call site #1 bootstrap method at butterknife.internal.DebouncingOnClickListener.<clinit>(DebouncingOnClickListener.java:12) at com.seeme.MainActivity_ViewBinding.<init>(MainActivity_ViewBinding.java:34) at java.lang.reflect.Constructor.newInstance0(Native Method) at java.lang.reflect.Constructor.newInstance(Constructor.java:334) at butterknife.ButterKnife.bind(ButterKnife.java:170) at butterknife.ButterKnife.bind(ButterKnife.java:99) at com.seeme.MainActivity.onCreate(MainActivity.java:27) at android.app.Activity.performCreate(Activity.java:7009) at android.app.Activity.performCreate(Activity.java:7000) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1214) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2731) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856) at android.app.ActivityThread.-wrap11(Unknown Source:0) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loop(Looper.java:164) at android.app.ActivityThread.main(ActivityThread.java:6494) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807) Caused by: java.lang.NoClassDefFoundError: Invalid descriptor: dex 038. ... 20 more

The at com.seeme.MainActivity.onCreate(MainActivity.java:27) in the MainActivity refers to this.

ButterKnife.bind(this);

Can't seem to understand why the app crashes. Any fix?

Source

sivansundar

Most helpful comment

Butter Knife requires that you enable Java 8 in your builds to function as of version 9.0.0 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.

JakeWharton on 11 Feb 2019

👍42

All 10 comments

You need to add something like

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

to your application build.gradle.

JakeWharton on 11 Feb 2019

👍42

Still does not work even with Java 8 enabled

cnwobi on 19 Apr 2019

Works perfectly for me. What version of butterknife do you use and what is the error exactly? Is it the same?

sivansundar on 21 Apr 2019

Butter Knife requires that you enable Java 8 in your builds to function as of version 9.0.0 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.

Thanks :) It works for me