I am migrating my project from swagger to springdoc openapi and seeing the following error when I use swagger-ui/index.html endpoint.

enter image description here

My POM file:

    <dependency>
      <groupId>org.springdoc</groupId>
      <artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
    </dependency>

Configurations:

@Bean
    public GroupedOpenApi api() {
      return GroupedOpenApi.builder().group("Test")
        .packagesToScan("com.test")
        .pathsToMatch("/api.*").build();
    }

@Bean
    public OpenAPI channelApiInfo() {
      Contact contact = new Contact();
      contact.setName("TestAPIs");
      contact.setEmail("test.com");
         return new OpenAPI()
           .info(new Info().title("Test Service")
           .description("This is a test service.")
           .contact(contact));
    }

Endpoint config:

    @Operation(summary = "Test API", description = "This is a test api")
    @ApiResponses(value = {
    @ApiResponse(responseCode = "200", description = "Success"),
    @ApiResponse(responseCode = "400", description = "ID is invalid")})
      public @ResponseBody ResponseEntity<Resource> getId(
    @Parameter(description = IdDesc, required = true) @PathVariable final String id) {
    //Implementation
    }