migration ecv2=>ecv3 
<br />
<b>Fatal error</b>:  Uncaught PDOException: SQLSTATE[HY000] [1049] Unknown database 'ecv3' in /mod/dev/backend/apiroot/ecv3e/lib/fly/pdodb.php:221
Stack trace:
#0 /mod/dev/backend/apiroot/ecv3e/lib/fly/pdodb.php(221): PDO-&gt;__construct('mysql:host=127....', 'root', 'dpadhel@tjqj', Array)
#1 /mod/dev/backend/apiroot/ecv3e/lib/fly/pdodb.php(199): pdo(Object(PDOConfig))
#2 /mod/dev/backend/apiroot/ecv3e/lib/fly/pdodb.php(233): opendb()
#3 /mod/dev/backend/apiroot/ecv3e/Index.Class.php(9): query('select * from e...', Array)
#4 /mod/dev/backend/apiroot/ecv3e/Index.Class.php(280): IndexBase-&gt;_migrate(NULL)
#5 /mod/dev/backend/apiroot/ecv3e/lib/fly/fly5.class.php(219): Index-&gt;execute(NULL, 'api/migrate', NULL)
#6 /mod/dev/backend/apiroot/ecv3e/lib/fly/fly5.class.php(257): FlyApp-&gt;run('Index', 'execute', NULL)
#7 /mod/dev/backend/apiroot/ecv3e/lib/fly/fly5.class.php(294): FlyApp-&gt;main()
#8 /mod/dev/backend/apiroot/ecv3e/index.php(4): require_once('/mod/dev/backen...')
#9 {main}
  thrown in <b>/mod/dev/backend/apiroot/ecv3e/lib/fly/pdodb.php</b> on line <b>221</b><br />