求高手解决——好麻烦的错误 Server Error in '/' Application.

2008-07-07 01:05:03 309 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

部署heroku up出现Application error An error occurred in the application and your page could not be ser python编程从入门到实践第20章设置应用程序的样式并对其进行部署的二。部署“学习笔记”的 20.2.12推送到Heroku 执行 heroku up 出现 Application error An error occurred in the application and your page could not be served. If you are the application owner, check your logs for details. You can do this from 阅读详情

Server Error in '/' Application.
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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:

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:

[NullReferenceException: Object reference not set to an instance of an object.]
System.Data.OleDb.OleDbConnection.ValidateTransaction(OleDbTransaction transaction, String method) +16
System.Data.OleDb.OleDbCommand.ValidateConnectionAndTransaction(String method) +37
System.Data.OleDb.OleDbCommand.ExecuteReaderInternal(CommandBehavior behavior, String method) +51
System.Data.OleDb.OleDbCommand.ExecuteReader(CommandBehavior behavior) +111
System.Data.OleDb.OleDbCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior) +4
System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +141
System.Data.Common.DbDataAdapter.Fill(DataTable[] dataTables, Int32 startRecord, Int32 maxRecords, IDbCommand command, CommandBehavior behavior) +162
System.Data.Common.DbDataAdapter.Fill(DataTable dataTable) +107
AccessDB.adb.GetDataTable(String sql) +122
NewsNet.AccessDAL.NewsCategory.GetChildList(Int32 ParentID) +81
NewsNet.BLL.NewsCategory.GetChildList(Int32 pid) +39
NewsNet.Web.NewsWeb.List.Page_Load(Object sender, EventArgs e) +208
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +15
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +34
System.Web.UI.Control.OnLoad(EventArgs e) +99
System.Web.UI.Control.LoadRecursive() +47
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1061

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Version Information: Microsoft .NET Framework Version:2.0.50727.832; ASP.NET Version:2.0.50727.832

以上是页面上出现的错误信息，
比较郁闷的是这个错误不是每次都出现，而是要刷新好多次才可能出现的，
现在在网上服务器那里，本机还没测试过。

各位说下出现这个错误可能的情况，谢谢。

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