@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

It happens to me for two reasons in IDEA:

1. Double check if your setting is picked (enabled) in IDEA: Preferences->Annotation Processors->Enable annotation processing.
2. After update your Idea, check your plugins and update them. It happens that plugins become incompatible with your new IDEA version, so just click to update them.