BLD:E0048

Install/Remove actions not allowed on registry root keys

The indicated registry key is a registry root key (i.e., one of the HKEY_xxx keys). These root keys are "built into" Windows and can therefore not be installed or removed. Therefore, the installation database cannot be built.

Solution

Do not specify explicit installation or removal actions for a registry root key. Only Create on demand is allowed as the installation action; for removal, either Do not remove or Remove if empty are acceptable.