The syntax of a variable name or ObjectID is not correct or a variable name, not an instance of the variable was entered. The correct syntax is one of the following:

• varName.n, where varName is alphanumeric, starting with an alphabetic (a-z) character (such as, sysDescr.0).
• n.n....n, where n is one or more digits (such as, 1.3.6.1.2.1.1.1.0).