The Member Of Persistent Class Is Not Associated With a Column
This article is relevant to entity models that utilize the deprecated Visual Studio integration of Telerik Data Access. The current documentation of the Data Access framework is available here.
This warning occurs when a property of a persistent class in the Visual Designer is not mapped to the data source, e.g. when you add new properties to a mapped persistent type.
Solution
To resolve this warning, map the new property to a column. For a complete walkthrough, see How to: Map New Properties to Columns.