Invoke-WebRequest, GET with parameters throws exception

Need to invoke the following url from PowerShell script:

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

While invoking exception thrown as "An error has occurred."
PowerShell script:

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

Same exception was thrown while checking this url with Postman.

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" });  

Working fine while calling from C#:

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

Please help me to invoke this url from PowerShell script.