UnsatisfiedDependencyException

UnsatisfiedDependencyException is a runtime exception that occurs when a dependency injection framework, such as Spring, is unable to resolve a dependency for a bean or component. This can happen when the required dependency is not available or is not configured correctly.

In other words, when a bean or component requires another bean or component to function properly, and that required dependency is not available or is not properly configured, then this exception is thrown. It indicates that the dependency injection framework was unable to satisfy the dependency of the bean or component.

To resolve this issue, you need to check the configuration of the bean or component and its dependencies. Make sure that all the required dependencies are available and properly configured. You may also need to check the classpath to ensure that all the required libraries are included.