Unable to upgrade swagger2 version from 2.7.0 to 3.00 in Spring REST API(regular Spring not sprint boot)

Question

My project is working fine with swagger2 version 2.7.0.not spring boot(spring mvc only) I am going to upgrade it 3.0.0 but it's giving plugin errors.

java.lang.nosuchMethodError:org.springframework.plugin.core.pluginRegistry.getPluginFor(Ljava/lang/Object;)Ljava/util/Optional;

My config as below:

<dependency>
    <groupId>io.springfox</groupId>
    <artifactId>springfox-swagger2</artifactId>
    <version>3.0.0</version>
</dependency>

<dependency>
    <groupId>io.springfox</groupId>
    <artifactId>springfox-swagger-ui</artifactId>
    <version>3.0.0</version>
</dependency>


Update: As mentioned in https://github.com/springfox/springfox
Step 2 : Add @EnableOpenApi for open API (and @EnableSwagger2WebMvc or @EnableSwagger2WebFlux for older versions)
I added @EnableSwagger2WebMvc in class ,Then it's asking dependency of springfox-swagger2,
as this coming from :
http://springfox.github.io/springfox/javadoc/snapshot/springfox/documentation/swagger2/annotations/EnableSwagger2WebMvc.html 
which is part of springfox-swagger2 dependency

Hence I am confused what to do..
can you please help cleaner approach with steps .
If I don't  use @EnableSwagger2WebMvc/EnableSwagger2
Swagger is not getting loaded

Answer 1

Not sure if you are using Spring Boot, or regular Spring flavor, but have you followed the migration instructions posted here?

https://github.com/springfox/springfox

1. Remove explicit dependencies on springfox-swagger2
2. Remove any @EnableSwagger2... annotations
3. Add the springfox-boot-starter (Spring boot) or springfox-oas (Spring MVC) dependency
4. Check if you do not rely on removed dependecy on guava
5. If you are using WebMvc but you don't use the @EnableWebMvc annotation yet, add this annotation (Spring boot).