在Microsoft.AspNetCore.Hosting.Diagnostics[6]内核3中获取.NET应用程序启动异常

Question

在使用.NET Core3.0运行Web应用程序时，我会遇到以下错误。我已经实现了属性路由，并在statup.cs的配置方法中使用了以下代码

app.UseEndpoints(endpoints =>
{
    endpoints.MapControllers();
});

错误：

crit: Microsoft.AspNetCore.Hosting.Diagnostics[6]
      Application startup exception
System.ArgumentException: There is an incomplete parameter in the route template. Check that each '{' character has a matching '}' character. (Parameter 'routeTemplate')
 ---> Microsoft.AspNetCore.Routing.Patterns.RoutePatternException: There is an incomplete parameter in the route template. Check that each '{' character has a matching '}' character.
   at Microsoft.AspNetCore.Routing.Patterns.RoutePatternParser.Parse(String pattern)
   at Microsoft.AspNetCore.Routing.Patterns.RoutePatternFactory.Parse(String pattern)
   at Microsoft.AspNetCore.Routing.Template.TemplateParser.Parse(String routeTemplate)
   --- End of inner exception stack trace ---
   at Microsoft.AspNetCore.Routing.Template.TemplateParser.Parse(String routeTemplate)
   at Microsoft.AspNetCore.Mvc.ApplicationModels.InferParameterBindingInfoConvention.ParameterExistsInAnyRoute(ActionModel action, String parameterName)   
   at Microsoft.AspNetCore.Mvc.ApplicationModels.InferParameterBindingInfoConvention.InferBindingSourceForParameter(ParameterModel parameter)

谢谢!

Answer 1

我已经解决了这个问题。我忘了在我的属性路由中为其中一个Http操作添加结束"}“。

[HttpPost("{id}/like/{recipientId")]

如您所见，在recipientId之后缺少"}“。我认为这个错误完全是误导性的。