Micronaut code generator from swagger file has some issues

[mbm56767]

Below issues are seen in the generated micronaut code from petstore swagger file
1.) a double comma: ,,
2.) Authorization, AuthorizationScope, MultipartFile and required are not imported
due to these issues, i am not able run the generated micronaut code using the MainApplication class.
Attaching the screenshots

i have followed the ref: https://github.com/franz-see/swagger-codegen-micronaut-generator for generating the micronaut code from swagger file. is there any other way to follow for generating the micronaut code from swagger file, if so please let me know.
Can someone help me to resolve these issues?