System.Data.SqlClient.SqlException: 第 1 行: '?' 附近有语法错误。
at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream)
at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior)
at System.Data.SqlClient.SqlCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior)
at System.(Object data, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior)
at System.(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior)
at System.(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable)
at DreamweaverCtrls.DataSet.DoInit()
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System.Exception: The DefaultView was requested but no tables yet exist.
at DreamweaverCtrls.DataSet.get_DefaultView()

请问是什么原因？这个是本地运行时的报错信息