ERROR: Component DesktopFolder installs to user profile. It must use a registry key under HKCU as its KeyPath, not a file.
Solution: In the Components Tab, find the CurrentUser component, which holds all the user's information. Pick one of the registry keys (except the one set as a keypath), right click on it and select the option 'Move'. Move that key to the component referred on the ICE error message. Go to that component, open it and find the 'new key'. Right click on the entry and select 'Set as Key' option.