Invoke-WebRequest, GET with parameters throws an exception

Question

You must call the following URL from a PowerShell script:

$webAPIUrl =  "http://hostName:portNumber/test/schedule-process/22/true"

When an exception is thrown as "An error has occurred."
PowerShell script:

Invoke-WebRequest -Uri $webAPIUrl -Method get -UseBasicParsing

The same exception was thrown when checking this Postman URL.

C # API Code:

  public class ScheduleController : ApiController  
  {  
      [HttpGet]  
      public void SchedulingProcess(int scheduleId, bool isScheduleStart)  
      {  

      }  
  }  

Route configuration code:

config.Routes.MapHttpRoute("SchedulingProcess","test/schedule-process/{scheduleId}/{isScheduleStart}",new { controller = "Schedule", action = "SchedulingProcess" });  

Works fine when called from C #:

string webAPIUrl = "http://hostName:portNumber/test/schedule-process/22/true";
new WebClient().OpenReadAsync(new Uri(webAPIUrl));

Please help me call this URL from a PowerShell script.