snow2102
snow2102

Reputation: 101

Android studio : Can not choose signature version

I want to build my app with V1 & V2 signature version. But both of them are greyed out. Can anyone please tell me how to make it avaiable to choose? [generate signature]

Upvotes: 7

Views: 11803

Answers (4)

Bita Mirshafiee
Bita Mirshafiee

Reputation: 650

one reason could be that if you build your project there are some problems. fix the errors and start creating your signs.

Upvotes: 0

Praveen Kumar Verma
Praveen Kumar Verma

Reputation: 3460

Basically your Android studio is updated, but gradle plugin of module classpath 'com.android.tools.build:gradle' version is downgrade in build.gradle. So please update the version of gradle plugin like this:

dependencies{
     classpath 'com.android.tools.build:gradle:3.0.1'
 }

or above in build.gradle. and Sync the project. Thank you!!

Upvotes: 0

John
John

Reputation: 99

As described in the official document,

Android 7.0 introduces APK Signature Scheme v2, a new app-signing scheme that offers faster app install times and more protection against unauthorized alterations to APK files. By default, Android Studio 2.2 and the Android Plugin for Gradle 2.2 sign your app using both APK Signature Scheme v2 and the traditional signing scheme, which uses JAR signing.

So be sure that the android studio and the gradle plugin of module(build.gradle->com.android.tools.build:gradle) are updated to 2.3 and above.

Upvotes: 7

iravul
iravul

Reputation: 408

Updating Android Studio and Gradle version worked for me.

Also check your build.gradle and configure it. More information here APK Signature Scheme v2

Upvotes: 5

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