"Cannot resolve configuration property" in Spring boot when trying to configure probes

Question

In my Spring Boot 2.3.3.RELEASE I'm tyring to enable to readiness and liveness endpoints.

I added this to the yml file:

But IntelliJ marks the values with "Cannot resolve configuration property" , and the endpoints are not accessible (e.g. http://localhost:8080/actuator/health/readiness)

Answer 1

The project was missing the trivial dependency of the actuator:

  <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-actuator</artifactId>
  </dependency>

After adding it, the IntelliJ stopped complaining and the endpoints are accessible.