Spring Boot Configuration AnnotationProcessor not configured

The error message "Spring Boot Configuration AnnotationProcessor not configured" typically occurs when you're missing the necessary dependencies or configurations for annotation processing in your Spring Boot project. Here are a few steps you can take to resolve this issue:

1. Make sure you have the necessary dependencies in your project's build file (e.g., pom.xml for Maven or build.gradle for Gradle). You'll need to include the following dependency:

For Maven:

   <dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-configuration-processor</artifactId>
       <optional>true</optional>
   </dependency>

For Gradle:

   implementation 'org.springframework.boot:spring-boot-configuration-processor'

2. Verify that your project's configuration class is annotated with `@Configuration` or `@SpringBootApplication`. This annotation is required for Spring Boot to perform the necessary annotation processing.

3. Ensure that your IDE is properly configured to support annotation processing. In IntelliJ IDEA, go to `Settings/Preferences -> Build, Execution, Deployment -> Compiler -> Annotation Processors` and make sure "Enable annotation processing" is checked.

4. Clean and rebuild your project to ensure that all necessary classes and configurations are properly processed.

5. If you're using an older version of Spring Boot, consider upgrading to the latest stable version, as newer versions often include bug fixes and improvements related to annotation processing.

By following these steps, you should be able to resolve the "Spring Boot Configuration AnnotationProcessor not configured" error.