出错页面是：http://localhost:8081/install/index.aspx?step=4
异常信息：引发类型为“System.Web.HttpUnhandledException”的异常。
Source:System.Web
StackTrace:   在 System.Web.UI.Page.HandleError(Exception e)   在 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)   在 System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)   在 System.Web.UI.Page.ProcessRequest()   在 System.Web.UI.Page.ProcessRequest(HttpContext context)   在 ASP.install_index_aspx.ProcessRequest(HttpContext context) 位置 c:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\74281f6e\8ccce01a\App_Web_1enmbdxe.0.cs:行号 0   在 System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()   在 System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step)   在 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
InnerException:System.Data.SqlClient.SqlException (0x80131904): 对象名 'KS_Admin' 无效。   在 System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)   在 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)   在 System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)   在 System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async, Int32 timeout, Boolean asyncWrite)   在 System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry)   在 System.Data.SqlClient.SqlCommand.ExecuteNonQuery()   在 Kesion.DataBase.DBHelper.ExecuteNonQuery(DbConnection connection, CommandType commandType, String commandText, DbParameter[] commandParameters)   在 Kesion.DataBase.DBHelper.ExecuteNonQuery(String connectionString, CommandType commandType, String commandText, DbParameter[] commandParameters)   在 Kesion.DataBase.DBHelper.ExecuteNonQuery(CommandType commandType, String commandText, DbParameter[] commandParameters)   在 Kesion.SqlDAL.DataFactory.ExecuteNonQuery(String commandText)   在 Kesion.BLL.DataFactory.ExecuteNonQuery(String commandText)   在 Kesion.NET.WebSite.install.Index.t9xI8UyiH3()   在 Kesion.NET.WebSite.install.Index.BtnStep4_Click(Object sender, EventArgs e)   在 System.Web.UI.WebControls.Button.OnClick(EventArgs e)   在 System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument)   在 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)ClientConnectionId:4623db1c-f9fc-46b6-a5b0-c12674a5fa23Error Number:208,State:1,Class:16

数据库没有安装成功，建议使用还原数据库的方式。数据库备份文件在 app_data目录下。

官方能不能回答下我的问题啊？拜托了

这个问题解决了，是我的数据库版本不对。