Http failure response for http://localhost:5001/APIS/User: 0 Unknown Error

i am getting empty responseGET http://localhost:5001/APIS/User net::ERR_EMPTY_RESPONSE

how can i solve this issue .it is arriving for first time when i create my angular app and call http request

    this.http.get("http://localhost:5001/APIS/User").subscribe({      next: response => this.Users = response,      error: err=> console.log(err),      complete: ()=> console.log("Request is completed")