Server Error in '/' Application.

Object reference not set to an instance of an object.

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.NullReferenceException: Object reference not set to an instance of an object.

Source Error:


Line 49:                 Dim docId As Integer = scoreDoc.Doc
Line 50:                 Dim doc As Document = searcher.Doc(docId)
Line 51:                 dt_results.Rows.Add(doc.[Get]("N_ID"), doc.[Get]("N_TIEUDE"), doc.[Get]("N_NOIDUNG"), doc.[Get]("N_NGAYTHANG"), score)
Line 52:             Next
Line 53:             searcher.Dispose()

Source File: D:\Domains\agro.gov.vn\wwwroot\App_Code\class_Lucene.vb    Line: 51

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.]
   clsLucene.SearchLucene(String input_text) in D:\Domains\agro.gov.vn\wwwroot\App_Code\class_Lucene.vb:51
   News_newsdetail.Page_Load(Object sender, EventArgs e) in D:\Domains\agro.gov.vn\wwwroot\vn\newsdetail.aspx.vb:128
   System.Web.UI.Control.OnLoad(EventArgs e) +97
   System.Web.UI.Control.LoadRecursive() +61
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +693


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4700.0