“/”应用程序中的服务器错误。

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[InvalidOperationException: Database is not open]
   () +250
   (CommandBehavior behavior) +16
   () +33
   () +2102
   () +112
   (CommandType commandType, String sql, Object[] args) +334
   (String sql, Object[] args) +41
   () +22
   (String content, Int32 id) +213
   (VtPage vt, Int32 id) +74
   _(VtPage vt) +313
   __Load(Object sender, EventArgs e) +201
   (Object sender, EventArgs e) +52
   (EventArgs e) +97
   () +61
   (Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +693