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javaandroidlibgdxapksign

Can't signature my LIbGDX Application

I copied a Project from github and changed a few things in there. Now I tried to generate a signed APK of it, but it doesn't work, because I can't choose a selection field. Perhaps you can better imagine what I mean if you see the picture of the Field where I want to generate the APK. What is the reason for that it doesn't work? And how can I solve my Problem?

Here is the image: https://i.sstatic.net/9TdPL.png

Solution

  • I hope you've some older version of android gradle plugin, updating to latest version may solve your issue.

    There is buildscript section inside root build.gradle file

    buildscript {
    repositories {
        mavenLocal()
        mavenCentral()
        maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
        jcenter()
    }
    dependencies {  
        classpath 'com.android.tools.build:gradle:2.3.2'    // <- update version  
    }
}

    Refresh all gradle projects.

    According to developers guide

    APK Signature Scheme v2 offers:

    1. Faster app install times

    2. More protection against unauthorized alterations to APK files.

    It is recommended to use APK Signature Scheme v2 but is not mandatory.

    Although we recommend applying APK Signature Scheme v2 to your app, this new scheme is not mandatory. If your app doesn't build properly when using APK Signature Scheme v2, you can disable the new scheme.