Generate Signed APK: Errors while building APK Android Studio

Question

I am unable to generate Signed APK using minifyEnabled true and shrinkResources true

App Level : build.gradle

buildscript {
            


        

Answer 1

Maybe one of your libraries (especially libraries which can use networking(httpClient, okHttp etc)) conflicts.. Try adding all of your libraries to a new project(do not add any code or component to your project).. If error occurs in that project too so the problem is in one of the libraries.. Try to uncomment libraries one by one..

Answer 2

First check whether you really need to use shrinkResources

If so, do as suggested in developers link https://developer.android.com/studio/build/shrink-code.html#shrink-resources mentioned above by IntelliJ Amiya, you have to use like below

android {

    buildTypes {
        release {
            shrinkResources true  // -- always add this above minifyEnabled --
            minifyEnabled true   
            proguardFiles getDefaultProguardFile('proguard-android.txt'),
                    'proguard-rules.pro'
        }
    }
}

Answer 3

Try to generate signed APK using terminal by gradle command see your stack trace that will give you detailed log where has the problem.

In Windows

$gradle clean

$  gradle --stacktrace assembleRelease

In Ubuntu

$./gradlew clean

$./gradlew --stacktrace assembleRelease 

if you have still problem post you stack trace here