We encountered an error when we install K2Five in a Farm/NLB topology.
K2Five Version: K2 Five (5.5) (5.0006.1000.0)
Please refer to this screen for this issue.
Error Message: 
The following exception occurred: 
Unable to execute install, pre-execution could not be completed successfully.
StackTrace:    at SourceCode.SetupManager.UI.Panels.ComponentPanel.ExecuteComponents()
   at SourceCode.SetupManager.UI.Panels.ComponentPanel.FinishPanel()
   at SourceCode.SetupManager.Main.navigateNext()
Attached the logfile for reference.

            