Remote Netconf Server Initialization Failed With NullPointerException

Remote Netconf Server Connection With new cloned Opendaylight controller(Cloned on Aug 21, 2013) failed with java null pointer exception.

Steps followed to replicate the issue:

1. Clone new Opnedaylight controller
2. Created the xml file and added the file in configuration/initial folder of the distribution that we are running
3. Added the remote device configuration yang files in cache/schema directory
4. Run the controller

Running the controller failed to initialize sal and throws java null pointer exception as below

2014-08-22 10:59:21.743 IST [remote-connector-processing-executor-2] WARN o.o.c.s.c.netconf.NetconfDevice - RemoteDevice

{m10sachi}: Unexpected error resolving device sources: java.lang.NullPointerException
2014-08-22 10:59:21.770 IST [remote-connector-processing-executor-2] ERROR o.o.c.s.c.netconf.NetconfDevice - RemoteDevice{m10sachi}

: Initialization in sal failed, disconnecting from device
java.lang.NullPointerException: null
at org.opendaylight.controller.sal.connect.netconf.NetconfStateSchemas.create(NetconfStateSchemas.java:128) ~[na:na]
at org.opendaylight.controller.sal.connect.netconf.NetconfStateSchemas.create(NetconfStateSchemas.java:118) ~[na:na]
at org.opendaylight.controller.sal.connect.netconf.NetconfStateSchemas.access$000(NetconfStateSchemas.java:35) ~[na:na]
at org.opendaylight.controller.sal.connect.netconf.NetconfStateSchemas$NetconfStateSchemasResolverImpl.resolve(NetconfStateSchemas.java:53) ~[na:na]
at org.opendaylight.controller.sal.connect.netconf.NetconfDevice$DeviceSourcesResolver.call(NetconfDevice.java:222) ~[na:na]
at org.opendaylight.controller.sal.connect.netconf.NetconfDevice$DeviceSourcesResolver.call(NetconfDevice.java:202) ~[na:na]
at java.util.concurrent.FutureTask.run(FutureTask.java:262) ~[na:1.7.0_55]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_55]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_55]
at java.lang.Thread.run(Thread.java:744) [na:1.7.0_55]
2014-08-22 10:59:21.771 IST [remote-connector-processing-executor-2] WARN o.o.c.s.c.n.l.NetconfDeviceCommunicator - RemoteDevice

{m10sachi}

: Session terminated Session closed