OpenAPI - Exception in thread "main" java.lang.RuntimeException: Issues with the OpenAPI input

I use open API to generate code from Swagger in a node server. Up until yesterday, it worked. The BE team deployed an update to the swagger, and now the generation fails with the error:

Error: Command failed: 
    npx openapi-generator-cli generate     -g typescript-axios     -i  http://opt-my-service.edge2-ingress.capitol.is/v3/api-docs/MYORG    -o /Users/itaytur/Documents/GitHub/graphql-service/src/integrations/generated/opt-my-service     --skip-validate-spec     --type-mappings=set=Array     -p enumNameSuffix=,withoutPrefixEnums=false,supportsES6=true,apiPackage=apis,modelPackage=models,useSingleRequestParameter=true
    
Exception in thread "main" java.lang.RuntimeException: Issues with the OpenAPI input. Possible causes: invalid/missing spec, malformed JSON/YAML files, etc.

The service it fails upon constantly changes, but the error stays the same.

The generation fails when I run it against the environment where BE pushes the change. It works if I run the generation in an environment where the update hasn't been deployed yet.

I upgraded the npm package:

"@openapitools/openapi-generator-cli": "2.16.2"

I changed the generator-cli version in the openapitools.json to 7.11.0.

Now it looks like this:

{
  "$schema": "./node_modules/@openapitools/openapi-generator-cli/config.schema.json",
  "spaces": 2,
  "generator-cli": {
    "version": "7.11.0"
  }
}

But none of that works.

The solution:

1. Delete the openapitools.json.
2. run the generate command

The generation creates the openapitools.json, and for some reason, it fixed the issue.