Error creating bean with name 'tomcatServletWebServerFactory' defined in class path code example

Example: error creating bean with name 'entitymanagerfactory' defined in class path resource spring boot

// Seems like you used @Id annotation from the wrong package in 
// your Degree class. 
// Change your 
import from org.springframework.data.annotation.Id 
// to 
import javax.persistence.Id. 
// That should help with the exception you're getting.