Oozie Sqoop import from Sql Server Failed

i can import SQL server data from the command but unable to execute sqoop from hue oozie.

see the errot log below

2304 [main] ERROR org.apache.sqoop.Sqoop – Got exception running Sqoop: java.lang.RuntimeException: Could not load db driver class: com.microsoft.jdbc.sqlserver.SQLServerDriver
2015-11-24 11:44:45,748 ERROR [main] sqoop.Sqoop (Sqoop.java:runSqoop(181)) – Got exception running Sqoop: java.lang.RuntimeException: Could not load db driver class: com.microsoft.jdbc.sqlserver.SQLServerDriver
Intercepting System.exit(1)

<<< Invocation of Main class completed <<<

Failing Oozie Launcher, Main class [org.apache.oozie.action.hadoop.SqoopMain], exit code [1]</span></span>