使用了services.AddDynamicWebApi()这个默认配置后启动报错

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按照源码默认运行时，在Service中继承了IDynamicWebApi的服务类并没有生成swagger文档

改用services.AddDynamicWebApi()时，启动报错： Microsoft.AspNetCore.Hosting.Diagnostics[6] Application startup exception System.NullReferenceException: Object reference not set to an instance of an object. at Panda.DynamicWebApiSample.Dynamic.ServiceActionRouteFactory.CreateActionRouteModel(String areaName, String controllerName, ActionModel action) in C:\Users\Administrator\Downloads\Panda.DynamicWebApi-master\Panda.DynamicWebApi-master\samples\Panda.DynamicWebApiSample\Dynamic\ServiceActionRouteFactory.cs:line 17 at Panda.DynamicWebApi.DynamicWebApiConvention.CreateActionRouteModel(String areaName, String controllerName, ActionModel action) in C:\Users\Administrator\Downloads\Panda.DynamicWebApi-master\Panda.DynamicWebApi-master\src\Panda.DynamicWebApi\DynamicWebApiConvention.cs:line 345 at Panda.DynamicWebApi.DynamicWebApiConvention.NormalizeSelectorRoutes(String areaName, String controllerName, ActionModel action) in C:\Users\Administrator\Downloads\Panda.DynamicWebApi-master\Panda.DynamicWebApi-master\src\Panda.DynamicWebApi\DynamicWebApiConvention.cs:line 321 at Panda.DynamicWebApi.DynamicWebApiConvention.ConfigureSelector(String areaName, String controllerName, ActionModel action) in C:\Users\Administrator\Downloads\Panda.DynamicWebApi-master\Panda.DynamicWebApi-master\src\Panda.DynamicWebApi\DynamicWebApiConvention.cs:line 233 at Panda.DynamicWebApi.DynamicWebApiConvention.ConfigureSelector(ControllerModel controller, DynamicWebApiAttribute controllerAttr) in C:\Users\Administrator\Downloads\Panda.DynamicWebApi-master\Panda.DynamicWebApi-master\src\Panda.DynamicWebApi\DynamicWebApiConvention.cs:line 212 at Panda.DynamicWebApi.DynamicWebApiConvention.ConfigureDynamicWebApi(ControllerModel controller, DynamicWebApiAttribute controllerAttr) in C:\Users\Administrator\Downloads\Panda.DynamicWebApi-master\Panda.DynamicWebApi-master\src\Panda.DynamicWebApi\DynamicWebApiConvention.cs:line 83 at Panda.DynamicWebApi.DynamicWebApiConvention.Apply(ApplicationModel application) in C:\Users\Administrator\Downloads\Panda.DynamicWebApi-master\Panda.DynamicWebApi-master\src\Panda.DynamicWebApi\DynamicWebApiConvention.cs:line 45