Invalid Open Api Schema

[ayedo]

First of all: thank you very much on your work on dcm4chee! I have just started using it, and it looks very useful and mature. I encountered the following problem when trying to generate C# clients using open api:

Describe the bug
When I try to generate a client using the open api schema, I get an error.

To Reproduce

• cd into dcm4chee-arc-ui2/src/swagger/
• execute openapi-generator generate -i openapi.json -g csharp-netcore -o ./csharp

Expected behavior
I expeced a client to be generated in the folder ./csharp

Screenshots

I used the latest version from master: c1de5e1

Edit: I tried validating the schema, and the same problem is raised:

• exeute openapi-generator validate openapi.json