Error "Corrupt block '999' found during reading backup piece" found during restore backup at standby

Hi gurus,

I would like to configure dataguard using RMAN backup based method. Firstly I have taken backup from primary by below script:

     sql "alter system switch logfile";

     backup database tag 'for_adg' format '/u01/bkp_for_adg/database_%U.bkp';

     backup archivelog all tag 'for_adg' format '/u01/bkp_for_adg/archivelog_%U.bkp';

     backup current controlfile for standby format '/u01/bkp_for_adg/stdb_cntl_%U.bkp';

Then I have transfer the backup to my standby site and restore controfile first, which has successfully restored. Later on I have tried to restore the database backup using below scirpt.