com.smarts.store.SmstoreException: class "com.emc.cmp.dmt.resources.sm_errors$SM_et"s signer information does not match signer information of other classes in the same package
To resolve this issue, use the "Add Source" function in the NPM interface to add the source AM domain, and retry the Discover All operation. Once the AM domain has been added the error message should no longer appear and discovery should work. For more information on using the "Add Source" function, see the Ionix Network Protocol Manager Discovery Guide.