System.ServiceModel.FaultException`1[Microsoft.Xrm.Sdk.OrganizationServiceFault]: System.Web.HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> Microsoft.Crm.CrmException: The Attribute(e1f54641-986d-ee11-8179-002248d5da74) component cannot be deleted because it is referenced by 2 other components. For a list of referenced components, use the RetrieveDependenciesForDeleteRequest.
   at Microsoft.Crm.Dialogs.DeleteDialogPage.ProcessCrmException(CrmException crmEx) +0x169
   at Microsoft.Crm.Dialogs.DeleteDialogPage.ConfigureForm() +0x925
   at Microsoft.Crm.Application.Controls.AppUIPage.OnPreRender(EventArgs e) +0xa2
   at Microsoft.Crm.Application.Controls.AppPage.OnPreRender(EventArgs e) +0x7
   at System.Web.UI.Control.PreRenderRecursiveInternal() +0x54
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +0x6d3
   --- End of inner exception stack trace ---
   at System.Web.UI.Page.HandleError(Exception e) +0x11b
   at System.Web.UI.Page.ProcessRequestMain(Boolean ... (Fault Detail is equal to Exception details: 
ErrorCode: 0x80040216
Message: System.Web.HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> Microsoft.Crm.CrmException: The Attribute(e1f54641-986d-ee11-8179-002248d5da74) component cannot be deleted because it is referenced by 2 other components. For a list of referenced components, use the RetrieveDependenciesForDeleteRequest.
   at Microsoft.Crm.Dialogs.DeleteDialogPage.ProcessCrmException(CrmException crmEx) +0x169
   at Microsoft.Crm.Dialogs.DeleteDialogPage.ConfigureForm() +0x925
   at Microsoft.Crm.Application.Controls.AppUIPage.OnPreRender(EventArgs e) +0xa2
   at Microsoft.Crm.Application.Controls.AppPage.OnPreRender(EventArgs e) +0x7
   at System.Web.UI.Control.PreRenderRecursiveInternal() +0x54
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +0x6d3
   --- End of inner exception stack trace ---
   at System.Web.UI.Page.HandleError(Exception e) +0x11b
...).