No effective change - Improve exception error message when property is not found on a bean type

Typically using IDE enhancement plugin with incremental compilation where part of an inheritance
hierarchy has been changed but not all related classes recompiled and re-enhanced.

src/main/java/io/ebeaninternal/server/deploy/BeanDescriptorManager.java

@@ -1392,7 +1392,9 @@ public class BeanDescriptorManager implements BeanDescriptorMap {
       Integer pos = reflectProps.getPropertyIndex(propName);
       if (pos == null) {
         if (isPersistentField(prop)) {
-          throw new IllegalStateException("Property " + propName + " not found in " + reflectProps + " for type " + desc.getBeanType());
+          throw new IllegalStateException(
+            "If you are running in an IDE with enhancement plugin try a Build -> Rebuild Project to recompile and enhance all entity beans. " +
+            "Error - property " + propName + " not found in " + reflectProps + " for type " + desc.getBeanType());
         }
 
       } else {