OIM 11gR2- oracle.iam.connectors.icfcommon.exceptions.IntegrationException: Connector ConnectorKey

All connector operation such as provisioning and reconciliation fails with following error

oracle.iam.connectors.icfcommon.exceptions.IntegrationException: Connector ConnectorKey;

Solution :

1. If you are deploying your connectors in Connector server - Then stop the connector server
2. Extract bundles in to bundles directory
3. restart connector sever
4. Run PurgeCache utilty on connector server
5. Restart OIM server (This is very very important)