question

Try running zipalign BEFORE you sign your APK - https://developer.android.com/studio/command-line/zipalign.

Hi David,

Thanks for your reply. I tried zipalign below commands but each time i after compressing some files it shows "Verification FAILED".

zipalign -p -f -v 4 E:\EWMerchants-ENRG\release_apk\release\app-release.apk E:\EWMerchants-ENRG\release_apk\release\outfile.apk

zipalign -f -v 4 E:\EWMerchants-ENRG\release_apk\release\app-release.apk E:\EWMerchants-ENRG\release_apk\release\outfile.apk

zipalign -c -v 4 E:\EWMerchants-ENRG\release_apk\release\outfile.apk

Kindly suggest where I am doing mistake.

Attached the output of zipalign command.

zipalign error.png

If you're facing challenges while uploading your android app to your sandbox account, it could be due to compatibility issues, misconfigurations, or restrictions within the sandbox environment. I recommend double-checking the APK file to ensure it meets all requirements, verifying that your sandbox account settings are correctly configured for app uploads, and reaching out to the platform's support team for further assistance if needed.

It seems like you’re encountering an issue with the APK signing process, specifically related to the V1 signature scheme. Since you mentioned using the apksigner tool with only V1 signing enabled, yet facing issues when uploading to the sandbox, here are a few steps you can take to troubleshoot and resolve the issue:

1. Verify APK Signature

• You can use the following command to verify the APK signature and ensure it's correctly signed:

  bashCopy codeapksigner verify --verbose --print-certs ewt_auto_split.apk
  

• Make sure that the output confirms the APK is signed with the V1 signature.

2. Check Minimum SDK Version

• Ensure that the minSdkVersion in your build.gradle file is set correctly. The V1 signature scheme is mandatory for Android versions prior to Android 7.0 (API level 24). If the minimum SDK version is 24 or higher, you might not need V1 signing.

3. Ensure APK is Not Already Signed

• Double-check that the APK you're signing with apksigner hasn't already been signed by Android Studio. If it has, signing it again might cause issues.
• To confirm, you can check the APK's signing information with:

  bashCopy codejarsigner -verify -verbose -certs ewt_auto_split.apk
  

4. Try Rebuilding the APK

• Rebuild the APK in Android Studio, ensuring no other signing configurations interfere with the process. You can do this by going to:
  • Build -> Clean Project
  • Build -> Rebuild Project

5. Use Android Studio to Sign the APK

• If possible, try using Android Studio’s built-in signing process instead of the command line:
  • Go to Build -> Generate Signed Bundle / APK... and follow the steps.
  • Ensure both V1 and V2 signature schemes are selected.

6. Verify JKS File and Passwords

• Ensure that the .jks file and the passwords provided are correct and match what’s needed to sign the APK.

7. Check the Error Log

• Look into the exact error message in the sandbox or during installation. It might provide more insights into what is going wrong.

8. Review Android SDK and Tools Versions

• Ensure that the build-tools version and the Android SDK used are compatible and updated. You can update your build-tools using the Android SDK Manager.

9. Consult Documentation or Forums

• Look for similar issues in Android or sandbox-specific forums. It might be a common problem with a well-documented solution.

If you can share the specific error message or more details from the log, that could help pinpoint the issue further.

It looks like you're having trouble with APK signing and upload. Make sure to run the zipalign tool on your APK before signing it. Use the following command to align your APK: zipalign -p -f -v 4 input.apk output.apk, where input.apk is your original unaligned APK and output.apk is the aligned APK. After aligning, verify the APK with apksigner using the command apksigner verify --verbose output.apk to ensure it’s properly signed.

Additionally, ensure that your APK signing configuration matches the requirements of your sandbox environment, which might have specific needs for V1 or V2 signatures. If you’re still facing issues, check for any sandbox-specific restrictions or settings that might be affecting the upload. Rebuilding the APK from Android Studio with correct settings might also help resolve the issue.

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Make sure the APK meets the platform's specifications, such as versioning, API levels, and format. Many platforms, like Google Play Console, have specific requirements for test environments that differ from production. basket random

• Check APK Signing Configuration: Since you're using apksigner, ensure your command is structured correctly. Double-check that the keystore file (EBT_Auto_Split.jks) is correctly set up and that the credentials (passwords, aliases) are correct.

• Confirm V1 Signing: Make sure the --v1-signing-enabled=true flag is being recognized. You can check this by re-running the verification command:

• apksigner verify --print-certs E:\EWMerchants-ENRG\release_apk\release\ewt_auto_split.apk

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