C# .NET CORE 后端接口報錯 he request matched multiple endpoints

報錯信息：

Microsoft.AspNetCore.Routing.Matching.AmbiguousMatchException: The request matched multiple endpoints. Matches: 

Api.Controllers.ProjectController.Paging (Api)
Api.Controllers.UserController.Paging (Api)

問題解析

請求匹配了多個端點，請求的后端接口路由重復了，檢查后發現以下兩個控制器的路由寫成一樣了

Api.Controllers.ProjectController.Paging (Api)
Api.Controllers.UserController.Paging (Api)

都寫成了

 [Route("api/user")]
 [ApiController]

解決方案

知道了問題所在，解決就簡單了，改一下Route就可以了

[Route("api/user")]
[Route("api/project")]