Problem
When running K2 Five installer from a folder containing special characters, the Setup Manager will fall back to the Maintenance screen because there is a mishandled exception within the installer UI screen as seen in the install trace:
Main.navigateNext: Panel load exception, hiding warning: System.Exception: Unable to execute install, pre-execution could not be completed successfully. at SourceCode.SetupManager.UI.Panels.ComponentPanel.ExecuteComponents() at SourceCode.SetupManager.UI.Panels.ComponentPanel.FinishPanel() at SourceCode.SetupManager.Main.navigateNext()Example of folder path containing special character: Downloads\K2Installer#5.6
Solution
Avoid running the installer from within folders that contain special characters in the folder name. Rename the folder name to remove the special character, and run the installer again.