NoClassDefFoundError: android.support.design.internal.NavigationMenu on Android 4.2.2 (wiko)

Question

I am trying to use the Android Support Design library (in version 23.0.1) and the class NavigationMenu (I use this class as an XML tag into a layout).

W

Answer 1

I'm following similar thread and struggling with finding the solution, but I don't have a device.

Basing on people's comments I have added following to the proguard config build type:

buildTypes {
    release {
        minifyEnabled true
        proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-project.txt'
    }
}

proguard-project.txt

-repackageclasses ''
-keep class android.support.v4.app.** { *; }
-keep interface android.support.v4.app.** { *; }

-keep class android.support.v7.app.** { *; }
-keep interface android.support.v7.app.** { *; }

-keep class android.support.v13.app.** { *; }
-keep interface android.support.v13.app.** { *; }

Could you please try with the following config? I have some doubts to this solution, because when I have undexed produced classes I still had NavigationMenuView in the same package. It hasn't been moved because of it's package access relationships. So what may help is adding another flag to the proguard-project.txt config, quite risky though:

-allowaccessmodification

That may be a good start to try fixing the issue.

So in your case proguard-project should look like this:

-keepattributes Exceptions,InnerClasses,Signature,Deprecated,SourceFile,LineNumberTable,*Annotation*,EnclosingMethod

-dontobfuscate
-dontoptimize
-allowaccessmodification
-repackageclasses ''
-keep class your.package.name.** { *; }
-keep class android.support.v4.app.** { *; }
-keep interface android.support.v4.app.** { *; }

-keep class android.support.v7.app.** { *; }
-keep interface android.support.v7.app.** { *; }

-keep class android.support.v13.app.** { *; }
-keep interface android.support.v13.app.** { *; }