The Unexpected Entity is issued in the following situations:
<entity> should not be exclusively composed of an 'Auto Number' attribute: You have an entity with just one sequential attribute and this situation is not allowed by some of databases supported by OutSystems Platform.
Depending on your requirements, either add a new attribute to your entity; or un-check the Auto Number property. Learn more about entity attributes.
<entity> should only have one attribute of 'Binary Data' data type: Your entity has more than one Binary data attributes and this situation is not supported by the database.
Depending on your requirements, either change the data type of one of these attributes or create a new entity and move one of these attributes to this new entity.
<table> is an invalid table name in <database>: The physical table name you specified has an invalid table for SQL Server and/or Oracle databases.
Edit this entity and specify the Table Name property. How?
Add an Entity | Entity Attributes | Warning Messages