I have a .NET 6.0 API project. I am trying to generate a C# API client, so I added the NSwag.MSBuild nuget package and modified my API project file by adding the following:

  <Target Name="NSwag" AfterTargets="PostBuildEvent" Condition=" '$(Configuration)' == 'Debug' ">
    <Exec WorkingDirectory="$(ProjectDir)" EnvironmentVariables="ASPNETCORE_ENVIRONMENT=Development" Command="$(NSwagExe_Net60) run nswag.json /variables:Configuration=$(Configuration)" />
  </Target>

I then created an nswag.json:

{
  "runtime": "Net60",
  "codeGenerators": {
    "openApiToCSharpClient": {
      "clientBaseClass": null,
      "generateClientClasses": true,
      "generateClientInterfaces": true,
      "clientBaseInterface": null,
      "injectHttpClient": true,
      "disposeHttpClient": false,
      "output": "../Blah/Client.g.cs",
      "contractsOutputFilePath": "../Blah/Contracts.g.cs"
    }
  }
}

When the project builds it generates a client.g.cs in the Blah folder BUT the actual C# code it generates seems to be from some Pet API, for example here are a couple signatures in the IClient interface, I have no clue where this Pet API is coming from. Does anyone have any ideas:

        /// <summary>
        /// Add a new pet to the store
        /// </summary>
        /// <param name="accept_Language">The language you prefer for messages. Supported values are en-AU, en-CA, en-GB, en-US</param>
        /// <param name="cookieParam">Some cookie</param>
        /// <exception cref="ApiException">A server side error occurred.</exception>
        System.Threading.Tasks.Task AddPetAsync(object body, string accept_Language, long cookieParam);

        /// <param name="cancellationToken">A cancellation token that can be used by other objects or threads to receive notice of cancellation.</param>
        /// <summary>
        /// Add a new pet to the store
        /// </summary>
        /// <param name="accept_Language">The language you prefer for messages. Supported values are en-AU, en-CA, en-GB, en-US</param>
        /// <param name="cookieParam">Some cookie</param>
        /// <exception cref="ApiException">A server side error occurred.</exception>
        System.Threading.Tasks.Task AddPetAsync(object body, string accept_Language, long cookieParam, System.Threading.CancellationToken cancellationToken);

        /// <summary>
        /// Update an existing pet
        /// </summary>
        /// <param name="accept_Language">The language you prefer for messages. Supported values are en-AU, en-CA, en-GB, en-US</param>
        /// <param name="cookieParam">Some cookie</param>
        /// <exception cref="ApiException">A server side error occurred.</exception>
        System.Threading.Tasks.Task UpdatePetAsync(object body, string accept_Language, long cookieParam);

        /// <param name="cancellationToken">A cancellation token that can be used by other objects or threads to receive notice of cancellation.</param>
        /// <summary>
        /// Update an existing pet
        /// </summary>
        /// <param name="accept_Language">The language you prefer for messages. Supported values are en-AU, en-CA, en-GB, en-US</param>
        /// <param name="cookieParam">Some cookie</param>
        /// <exception cref="ApiException">A server side error occurred.</exception>
        System.Threading.Tasks.Task UpdatePetAsync(object body, string accept_Language, long cookieParam, System.Threading.CancellationToken cancellationToken);

        /// <summary>
        /// Find pet by ID
        /// </summary>
        /// <param name="petId">ID of pet to return</param>
        /// <returns>successful operation</returns>
        /// <exception cref="ApiException">A server side error occurred.</exception>
        System.Threading.Tasks.Task<Pet> GetPetByIdAsync(long petId);