One of my friend received the below shown error during the add node installation of SQL Server 2008 on a Windows Server 2008 machine.
Solution: If we are sure that the cluster verification doesn't have any issue, we can complete the installation using the below commands.
For an integrated failover Add-Note setup, run the following command on each node that is being added:
Setup /SkipRules=Cluster_VerifyForErrors /Action=InstallFailoverCluster
For an advanced or enterprise installation, run the following command:
Setup /SkipRules=Cluster_VerifyForErrors /Action=CompleteFailoverCluster
If you receive this validation failure when you add a node to an existing failover installation, run the following command on each node that is being added:
Setup /SkipRules=Cluster_VerifyForErrors /Action=AddNode