I assume you generated this in development class or package (as they call it these days) $TMP
you can change it as follows:
- open your DataSource (via RSA1)
- follow menu path: Extras > Object Directory Entry
- click Display/Change (or F6)
- change $TMP to a valid (transportable) package
- hit the green tick
you'll either have to assign a transport request then or create a new one