java.lang.VerifyError: com/facebook/i/k at SoLoader.initImpl$230dc011(SoLoader.java:203)

Description

I posted the exact same issue to Fresco (https://github.com/facebook/fresco/issues/2039), but I believe that it’s actually for you.

Crash is happening on Android 4.x devices, when APK is built with ProGuard enabled and ‘proguard-android-optimize.txt’ configuration file.

Reproduction

1. Get an Android 4.x device
2. Build an app with following build settings (“-optimize” is the important part):

debug {
    minifyEnabled true
    proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro', 'proguard-fresco.pro'
}

1. BOOM!

You can find all the detailed information and system dumps here: http://crashes.to/s/c450feed2e9

Additional Information

• Fresco version: 1.8.0
• Platform version: Android 4.x.

[kceb]

@fenglu09 I noticed that the issue arose when I enabled multidex for a device with android sdk version 17 (Android 4.2). To resolve the issue, I followed steps here:

https://developer.android.com/studio/build/multidex#java

1. Add implementation 'com.android.support:multidex:1.0.3' to dependencies in app/build.gradle
2. In MainApplication.java:

import androidx.multidex.MultiDex; // Note: You might need to replace this with: import android.support.multidex.Multidex;
import android.content.Context;

1. Add following to MainApplication.java:

  @Override
  protected void attachBaseContext(Context base) {
     super.attachBaseContext(base);
     MultiDex.install(this);
  }

[tuncaulubilge]

Adding these rules has resolved the issue for me

-keep,allowobfuscation @interface com.facebook.soloader.DoNotOptimize
-keep class com.facebook.soloader.SysUtil$LollipopSysdeps {
    public <methods>;
}
-keep @com.facebook.soloader.DoNotOptimize class *
-keepclassmembers class * {
    @com.facebook.soloader.DoNotOptimize *;
}