What Does The Error Popup "Not A Valid String" Mean And How To Fix It

This error will mostly occur when adding fields or working on an application, profile, or section. Not A Vaid String means something is incorrect or missing in a model.

Models are the designated area where information is stored. Every answer to every question in Enginehire is sent to a model for safe keeping. 

NOT A VAILD STRING will appear when a component of the field is missing or incorrect. 

The Model in the example below is selector3

Because the Option is left blank, this user may get a NOT A VAILD STRING error. To fix they would need to add an option to this field like I Agree and select Save.