@ConfigurationProperties Spring Boot Configuration Annotation Processor not found in classpath

Question

I try to make completion for custom properties in Spring Boot.

I tried to create a simple project via IntelliJ IDEA 2016.3:

1. Created a new G

Answer 1

In version 2018.3 of IntelliJ, I solved this problem (as per this documentation) in the following way:

With Gradle 4.5 and earlier, the dependency should be declared in the compileOnly configuration, as shown in the following example:

dependencies {
  compileOnly "org.springframework.boot:spring-boot-configuration-processor"
}

With Gradle 4.6 and later, the dependency should be declared in the annotationProcessor configuration, as shown in the following example:

dependencies {
  annotationProcessor "org.springframework.boot:spring-boot-configuration-processor"
}