Invalid identifier <Stringname>.
There are invalid characters in the object's name. For example, a view name cannot contain a period, so a.b is invalid.
Names cannot use characters such as / : * # ? " < > |. As a general rule, use alphabetic and numeric characters and avoid using symbol characters. For specific rules on valid naming conventions, consult the documentation for your database and operating system.
To correct this error
Enter a valid name for the object.