Spring Boot java.lang.IllegalArgumentException: Not a managed type - spring

Question

I'm trying to run a very simple Spring Boot application, but I get the following error messages:
java.lang.IllegalStateException: Failed to load ApplicationContext
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'todoController': Unsatisfied dependency expressed through field 'todoDAO'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'todoDAO': Unsatisfied dependency expressed through field 'todoRepository'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'todoRepository': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Not a managed type: class com.ecominer.model.Todo
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'todoDAO': Unsatisfied dependency expressed through field 'todoRepository'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'todoRepository': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Not a managed type: class com.ecominer.model.Todo
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'todoRepository': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Not a managed type: class com.ecominer.model.Todo
Caused by: java.lang.IllegalArgumentException: Not a managed type: class com.ecominer.model.Todo
Here is my main application class code:
package com.ecominer.network;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
#SpringBootApplication
#EnableJpaRepositories("com.ecominer.repository")
#EnableJpaAuditing
#ComponentScan({"com.ecominer.controller", "com.ecominer.dao", "com.ecominer.model"})
public class NetworkApplication {
public static void main(String[] args) {
SpringApplication.run(NetworkApplication.class, args);
}
}
and here is the Todo class:
package com.ecominer.model;
import javax.persistence.Entity;
import javax.persistence.EntityListeners;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
import org.springframework.data.jpa.domain.support.AuditingEntityListener;
#Entity
#Table(name="todos")
#EntityListeners(AuditingEntityListener.class)
public class Todo {
#Id
#GeneratedValue(strategy=GenerationType.AUTO)
private Long id;
protected Todo() {}
private String label;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getLabel() {
return label;
}
public void setLabel(String label) {
this.label = label;
}
}
I tried to add the corresponding package name to my #ComponentScan annotation and I tried adding the #Component annotation to my Todo class, none of which worked.

Answer 1

Try to configure #EntityScan to the main class NetworkApplication
#EntityScan(basePackages = "com.ecominer.model")
public class NetworkApplication {
...
}