Arkadaşlar asp olan bir siteyi curl ile okumaya çalışınca böyle bir hata aldım:

Alıntı
Server Error in '/' Application.
Value cannot be null.
Parameter name: child
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentNullException: Value cannot be null.
Parameter name: child

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[ArgumentNullException: Value cannot be null.
Parameter name: child]
System.Web.UI.ControlCollection.Add(Control child) +8678627
incDetaySablon.Page_Load(Object sender, EventArgs e) +1495
System.Web.UI.Control.OnLoad(EventArgs e) +99
System.Web.UI.Control.LoadRecursive() +50
System.Web.UI.Control.LoadRecursive() +141
System.Web.UI.Control.LoadRecursive() +141
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627


Version Information: Microsoft .NET Framework Version:2.0.50727.4200; ASP.NET Version:2.0.50727.4016
Siteyi tarayıcıyla normal olarak talep ettiğimde herhangi bir sorun yok ama işin içine curl girdi mi bu hatay alıyorum nedendir acaba?