Apareceu esse erro para mim e não consegui resolve-lo
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled. 2021-06-24 10:38:38.230 ERROR 21592 --- [ restartedMain] o.s.boot.SpringApplication : Application run failed
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'securityConfigurations': Unsatisfied dependency expressed through field 'tokenService'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tokenService': Injection of autowired dependencies failed; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'forum.jwt.expiration' in value "${forum.jwt.expiration}" at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.resolveFieldValue(AutowiredAnnotationBeanPostProcessor.java:660) ~[spring-beans-5.3.8.jar:5.3.8] at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:640) ~[spring-beans-5.3.8.jar:5.3.8]