I followed all the using keytool mentioned here : https://developers.google.com/identity/sms-retriever/verify#computing_your_apps_hash_string. in windows.
I got the 11 digit has string but it is not working and getting this output after following command:
keytool -exportcert -alias PlayDeploymentCert -keystore MyProductionKeys.keystore | xxd -p | tr -d "[:space:]" | echo -n com.example.myapp cat | sha256sum | tr -d "[:space:]-" | xxd -r -p | base64 | cut -c1-11
Getting the following warning message:
Warning: The JKS keystore uses a proprietary format. It is recommended to migrate to PKCS12 which is an industry standard format tr: write error
Don't know why "tr: write error" is coming ?
I am implementing this in flutter using this plugin: https://pub.dev/packages/sms_autofill. It is working fine in debug mode but not working in play store version.