Consider defining a bean of type 'org.springframework.security.oauth2.jwt.JwtDecoder' in your configuration.

This error message is related to Spring Security OAuth2 configuration. It indicates that you need to define a bean of type 'org.springframework.security.oauth2.jwt.JwtDecoder' in your configuration.

To resolve this issue, you can define the bean in your Spring configuration file or Java config class. Here's an example of how to define it in a Java config class using the @Bean annotation:

@Bean
public JwtDecoder jwtDecoder() {
    return NimbusJwtDecoder.withJwkSetUri("your-jwk-set-uri-here").build();
}

Replace "your-jwk-set-uri-here" with the actual URI of your JWK set.

You may need to add additional configuration to your Spring Security OAuth2 configuration, depending on your requirements. For example, you may need to configure OAuth2 client or resource server properties.

Make sure that your configuration is properly configured and that all required dependencies are included in your project.