异常详细信息: System.Data.SQLite.SQLiteException: Attempt to write a read-only database
attempt to write a readonly database

源错误:

执行当前 Web 请求期间生成了未处理的异常。可以使用下面的异常堆栈跟踪信息确定有关异常原因和发生位置的信息。　

堆栈跟踪:

[SQLiteException (0x80004005): Attempt to write a read-only database
attempt to write a readonly database]
　 System.Data.SQLite.SQLite3.Reset(SQLiteStatement stmt) +375
　 System.Data.SQLite.SQLite3.Step(SQLiteStatement stmt) +202
　 System.Data.SQLite.SQLiteCommand.ExecuteNonQuery() +63
　 AOFAXWEB.Download.Page_Load(Object sender, EventArgs e) in E:\AOFAXWEB\AOFAXWEB\Download.aspx.cs:91
　 System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
　 System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
　 System.Web.UI.Control.OnLoad(EventArgs e) +99
　 System.Web.UI.Control.LoadRecursive() +50
　 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627

这是什么原因呢？

Attempt to write a read-only database
attempt to write a readonly database
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.Data.SQLite.SQLiteException: Attempt to write a read-only database
attempt to write a readonly database

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:

[SQLiteException (0x80004005): Attempt to write a read-only database
attempt to write a readonly database]
　 System.Data.SQLite.SQLite3.Reset(SQLiteStatement stmt) +373
　 System.Data.SQLite.SQLite3.Step(SQLiteStatement stmt) +200
　 System.Data.SQLite.SQLiteCommand.ExecuteNonQuery() +57
　 AOFAXWEB.Download.Page_Load(Object sender, EventArgs e) in E:\AOFAXWEB\AOFAXWEB\Download.aspx.cs:91
　 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:2.0.50727.42; ASP.NET Version:2.0.50727.42

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