'Basic 'attribute type shocould not be a persistence entity/a container

When using IDEA for HIbernate development, the object ing obtained from datasource is not ideal and needs to be changed manually.

When you add a property Setter to an object class, a red tip: 'Basic 'attribute type shocould not be a persistence entity is displayed.

Or 'basic 'attribute type shocould not be a container.

Then, after adding an association to the hbm. xml file, the red tip disappears.

'Basic 'attribute type shocould not be a persistence entity/a container