Oracle Error ORA-19228: XPST0008 – undeclared identifier: prefix ‘string’ local-name ‘string’

Oracle Error Message

ORA-19228: XPST0008 – undeclared identifier: prefix ‘string’ local-name ‘string’

Reason for the Error

The given identifier refers to either a type name, function name, namespace prefix, or variable name that is not defined in the static context.

Solution

Fix the expression to remove the identifier, or declare the appropriate variable, type, function or namespace.