Server Error in '/' Application.

A Web Part or Child Control of a Generic Web Part has already been added with ID 'wp976620350'.

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.InvalidOperationException: A Web Part or Child Control of a Generic Web Part has already been added with ID 'wp976620350'.

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:


[InvalidOperationException: A Web Part or Child Control of a Generic Web Part has already been added with ID 'wp976620350'.]
   System.Web.UI.WebControls.WebParts.WebPartManagerControlCollection.AddWebPartHelper(WebPart webPart) +2731000
   System.Web.UI.WebControls.WebParts.WebPartManagerControlCollection.AddWebPart(WebPart webPart) +141
   System.Web.UI.WebControls.WebParts.WebPartManager.LoadDynamicWebPart(String id, String typeName, String path, String genericWebPartID, Boolean isShared) +1634
   System.Web.UI.WebControls.WebParts.WebPartManager.LoadDynamicWebParts(PersonalizationEntry entry) +302
   System.Web.UI.WebControls.WebParts.WebPartManager.OnPageInitComplete(Object sender, EventArgs e) +217
   System.Web.UI.Page.OnInitComplete(EventArgs e) +11701304
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +631

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4797.0