You get the following error message in BarTender:
An object on the template was set to read in the field "<field name>". However, this field was not found. Proceed with unknown fields as blank strings?
Each object in your template has a "data source". This is how Bartender fills the object with data at print time. One of the available data sources is a "database field". If you have an object that's been set to read from a particular database field, and that field is not found, BarTender will throw this error.
Closely inspect all label objects, make sure to check named data source objects and print quantity objects. Note that each template in the BarTender document has to be checked.
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