I went to deploy a desktop application on a clients machine after completing development and testing.
Upon authentication, I get the following exception message.  I verified that we are using the same version of Sage50 and the build number.
Does anyone have any thoughts?

I cannot make this error occur locally.

Sage.Peachtree.API.Exceptions.IncompatibleCompanyVersionException: Company requires conversion. ---> Sage.Peachtree.Domain.Exceptions.IncompatibleCompanyVersionException: Company requires conversion.