The 'crsctl stop rollingpatch' command was rejected because all the nodes in the cluster were not patched to the same patch level.
Make sure all the nodes in the cluster have been patched to the same patch level using the 'crsctl query crs softwarepatch <host>' command. Retry the 'crsctl stop rollingpatch' command after patching the required nodes.
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Try the following links for this error:
http://docs.oracle.com/cd/E16655_01/server.121/e26079/crsus.htm