When I attempt to load an Axiom application, why do I get an error message about having the wrong license version?

When I attempt to load an Axiom application, why do I get an error message about having the wrong license version?

The exact message you see is: “Your license is for a different version of (Axiom Product + Version) than the version you have installed (Axiom Product + Version). Their versions need to match for the license to work.”
This means that the license string  the product is trying to use (located in the file "Axiom.lic") is for a different version of the product than you have installed. Contact the Axiom Activation Department (SoftwareActivation@AxiomInt.com) to obtain an updated license file, an updated product or both.