哪里和什么是错误？

Question

Site使用VB运行.NET 4.5。使用SQLServer和ELMAH。我使用VWD 2012。 生产站点工作正常，但本地开发站点崩溃并出现错误： “指定的字符串不是电子邮件地址所需的格式。” 在尝试加载\ Admin文件夹中的页面时，需要登录。

一旦登录屏幕显示在浏览器中，“源不可用”选项卡上的VWD就会出现错误。

错误详情如下：

*System.FormatException was unhandled
  HResult=-2146233033
  Message=The specified string is not in the form required for an e-mail address.
  Source=System
  StackTrace:
       at System.Net.Mail.MailAddressParser.ReadCfwsAndThrowIfIncomplete(String data, Int32 index)
       at System.Net.Mail.MailAddressParser.ParseDomain(String data, Int32& index)
       at System.Net.Mail.MailAddressParser.ParseAddress(String data, Boolean expectMultipleAddresses, Int32& index)
       at System.Net.Mail.MailAddressParser.ParseAddress(String data)
       at System.Net.Mail.MailAddress..ctor(String address, String displayName, Encoding displayNameEncoding)
       at System.Net.Mail.MailMessage..ctor()
       at Elmah.ErrorMailModule.ReportError(Error error)
       at Elmah.ErrorMailModule.ReportError(Object state)
       at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context(Object state)
       at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
       at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
       at System.Threading.ThreadPoolWorkQueue.Dispatch()
       at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()
  InnerException:* 

ELMAH将错误存储在AllXML字段中：

<error
  application="/VFA4"
  host="DAVE-PC"
  type="System.Web.HttpException"
  message="File does not exist."
  source="System.Web"
  detail="System.Web.HttpException (0x80004005): File does not exist.&#xD;&#xA;   at System.Web.StaticFileHandler.GetFileInfo(String virtualPathWithPathInfo, String physicalPath, HttpResponse response)&#xD;&#xA;   at System.Web.StaticFileHandler.ProcessRequestInternal(HttpContext context, String overrideVirtualPath)&#xD;&#xA;   at System.Web.DefaultHttpHandler.BeginProcessRequest(HttpContext context, AsyncCallback callback, Object state)&#xD;&#xA;   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()&#xD;&#xA;   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean&amp; completedSynchronously)"
  time="2014-01-13T15:15:41.7894004Z"
  statusCode="404">
  <serverVariables>
    <item
      name="ALL_HTTP">
      <value
        string="HTTP_CONNECTION:keep-alive&#xD;&#xA;HTTP_ACCEPT:*/*&#xD;&#xA;HTTP_ACCEPT_ENCODING:gzip, deflate&#xD;&#xA;HTTP_ACCEPT_LANGUAGE:en-US,en;q=0.8&#xD;&#xA;HTTP_COOKIE:.ASPXANONYMOUS=YUThibsmzwEkAAAANWNhZGVjOTItNGQzNS00NmM3LTk3NjYtMTBkODAyYTBiODJhdYxJPubvb1GGRcsjrVicS0N3hCM1; VFA=ID=0&amp;Name=Visitor&amp;ACLSite=0&amp;LoggedIn=false&amp;Profile=0&amp;Greeting=Visitor&amp;Email=; FCOCRV.ASPXAUTH=2EB2E728E7546828599E7059AC071774F1B68DE36945B303364F8DE61A99F4DAEA1378B800DE77E4AD01EDCD1280072326E94CC7F9195A9AE1C8D5B829467129E14E9370F038922195F7D7FC6D7AB38936BBBC59C6C51B406783DA5C6D6567F00CB2B2AF25FD94881D778037C0EB183F8E009861; VFAanon=82GiHFGPKOy-L41M6_huRwSQi3a9FrKsTxn8DLe9u9G-5_4E45PebhWPaRXIcrD75UH17jCEDam8dBaRxfr7MOVXANsTmfdxLNxfGfGsWnq2y7yULGQg7BcCnFVfqmoMWOEp-w2; Violette=bIkdCP9-GSCYa2OhlgT3wakdXVcNXKlK1-VMT5WKlnHquMi7gMk3uIuXuEf87i7KZqH-13GVbwaqNV_7zj-pWgObGgZZPzUING_2tWJGlaLNkM4pUU6ttrVAdjyOn9bjTUBlDw2; __AntiXsrfToken=cde04d3ee0d74a9ba9af775e3dc13bb4&#xD;&#xA;HTTP_HOST:localhost:60825&#xD;&#xA;HTTP_REFERER:http://localhost:60825/VFA4/Account/Login?ReturnUrl=%2fVFA4%2fAdmin%2fAdm-VFAMembers.aspx&#xD;&#xA;HTTP_USER_AGENT:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/32.0.1700.72 Safari/537.36&#xD;&#xA;" />
    </item>
    <item
      name="ALL_RAW">
      <value
        string="Connection: keep-alive&#xD;&#xA;Accept: */*&#xD;&#xA;Accept-Encoding: gzip, deflate&#xD;&#xA;Accept-Language: en-US,en;q=0.8&#xD;&#xA;Cookie: .ASPXANONYMOUS=YUThibsmzwEkAAAANWNhZGVjOTItNGQzNS00NmM3LTk3NjYtMTBkODAyYTBiODJhdYxJPubvb1GGRcsjrVicS0N3hCM1; VFA=ID=0&amp;Name=Visitor&amp;ACLSite=0&amp;LoggedIn=false&amp;Profile=0&amp;Greeting=Visitor&amp;Email=; FCOCRV.ASPXAUTH=2EB2E728E7546828599E7059AC071774F1B68DE36945B303364F8DE61A99F4DAEA1378B800DE77E4AD01EDCD1280072326E94CC7F9195A9AE1C8D5B829467129E14E9370F038922195F7D7FC6D7AB38936BBBC59C6C51B406783DA5C6D6567F00CB2B2AF25FD94881D778037C0EB183F8E009861; VFAanon=82GiHFGPKOy-L41M6_huRwSQi3a9FrKsTxn8DLe9u9G-5_4E45PebhWPaRXIcrD75UH17jCEDam8dBaRxfr7MOVXANsTmfdxLNxfGfGsWnq2y7yULGQg7BcCnFVfqmoMWOEp-w2; Violette=bIkdCP9-GSCYa2OhlgT3wakdXVcNXKlK1-VMT5WKlnHquMi7gMk3uIuXuEf87i7KZqH-13GVbwaqNV_7zj-pWgObGgZZPzUING_2tWJGlaLNkM4pUU6ttrVAdjyOn9bjTUBlDw2; __AntiXsrfToken=cde04d3ee0d74a9ba9af775e3dc13bb4&#xD;&#xA;Host: localhost:60825&#xD;&#xA;Referer: http://localhost:60825/VFA4/Account/Login?ReturnUrl=%2fVFA4%2fAdmin%2fAdm-VFAMembers.aspx&#xD;&#xA;User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/32.0.1700.72 Safari/537.36&#xD;&#xA;" />
    </item>
    <item
      name="APPL_MD_PATH">
      <value
        string="" />
    </item>
    <item
      name="APPL_PHYSICAL_PATH">
      <value
        string="C:\inetpub\wwwroot\VFA4\" />
    </item>
    <item
      name="AUTH_TYPE">
      <value
        string="" />
    </item>
    <item
      name="AUTH_USER">
      <value
        string="" />
    </item>
    <item
      name="AUTH_PASSWORD">
      <value
        string="*****" />
    </item>
    <item
      name="LOGON_USER">
      <value
        string="DAVE-PC\Dave" />
    </item>
    <item
      name="REMOTE_USER">
      <value
        string="" />
    </item>
    <item
      name="CERT_COOKIE">
      <value
        string="" />
    </item>
    <item
      name="CERT_FLAGS">
      <value
        string="" />
    </item>
    <item
      name="CERT_ISSUER">
      <value
        string="" />
    </item>
    <item
      name="CERT_KEYSIZE">
      <value
        string="" />
    </item>
    <item
      name="CERT_SECRETKEYSIZE">
      <value
        string="" />
    </item>
    <item
      name="CERT_SERIALNUMBER">
      <value
        string="" />
    </item>
    <item
      name="CERT_SERVER_ISSUER">
      <value
        string="" />
    </item>
    <item
      name="CERT_SERVER_SUBJECT">
      <value
        string="" />
    </item>
    <item
      name="CERT_SUBJECT">
      <value
        string="" />
    </item>
    <item
      name="CONTENT_LENGTH">
      <value
        string="0" />
    </item>
    <item
      name="CONTENT_TYPE">
      <value
        string="" />
    </item>
    <item
      name="GATEWAY_INTERFACE">
      <value
        string="" />
    </item>
    <item
      name="HTTPS">
      <value
        string="" />
    </item>
    <item
      name="HTTPS_KEYSIZE">
      <value
        string="" />
    </item>
    <item
      name="HTTPS_SECRETKEYSIZE">
      <value
        string="" />
    </item>
    <item
      name="HTTPS_SERVER_ISSUER">
      <value
        string="" />
    </item>
    <item
      name="HTTPS_SERVER_SUBJECT">
      <value
        string="" />
    </item>
    <item
      name="INSTANCE_ID">
      <value
        string="" />
    </item>
    <item
      name="INSTANCE_META_PATH">
      <value
        string="" />
    </item>
    <item
      name="LOCAL_ADDR">
      <value
        string="::1" />
    </item>
    <item
      name="PATH_INFO">
      <value
        string="/VFA4/Account/Scripts/jquery.flexslider-min.js" />
    </item>
    <item
      name="PATH_TRANSLATED">
      <value
        string="C:\inetpub\wwwroot\VFA4\Account\Scripts\jquery.flexslider-min.js" />
    </item>
    <item
      name="QUERY_STRING">
      <value
        string="" />
    </item>
    <item
      name="REMOTE_ADDR">
      <value
        string="::1" />
    </item>
    <item
      name="REMOTE_HOST">
      <value
        string="::1" />
    </item>
    <item
      name="REMOTE_PORT">
      <value
        string="" />
    </item>
    <item
      name="REQUEST_METHOD">
      <value
        string="GET" />
    </item>
    <item
      name="SCRIPT_NAME">
      <value
        string="/VFA4/Account/Scripts/jquery.flexslider-min.js" />
    </item>
    <item
      name="SERVER_NAME">
      <value
        string="localhost" />
    </item>
    <item
      name="SERVER_PORT">
      <value
        string="60825" />
    </item>
    <item
      name="SERVER_PORT_SECURE">
      <value
        string="0" />
    </item>
    <item
      name="SERVER_PROTOCOL">
      <value
        string="HTTP/1.1" />
    </item>
    <item
      name="SERVER_SOFTWARE">
      <value
        string="" />
    </item>
    <item
      name="URL">
      <value
        string="/VFA4/Account/Scripts/jquery.flexslider-min.js" />
    </item>
    <item
      name="HTTP_CONNECTION">
      <value
        string="keep-alive" />
    </item>
    <item
      name="HTTP_ACCEPT">
      <value
        string="*/*" />
    </item>
    <item
      name="HTTP_ACCEPT_ENCODING">
      <value
        string="gzip, deflate" />
    </item>
    <item
      name="HTTP_ACCEPT_LANGUAGE">
      <value
        string="en-US,en;q=0.8" />
    </item>
    <item
      name="HTTP_COOKIE">
      <value
        string=".ASPXANONYMOUS=YUThibsmzwEkAAAANWNhZGVjOTItNGQzNS00NmM3LTk3NjYtMTBkODAyYTBiODJhdYxJPubvb1GGRcsjrVicS0N3hCM1; VFA=ID=0&amp;Name=Visitor&amp;ACLSite=0&amp;LoggedIn=false&amp;Profile=0&amp;Greeting=Visitor&amp;Email=; FCOCRV.ASPXAUTH=2EB2E728E7546828599E7059AC071774F1B68DE36945B303364F8DE61A99F4DAEA1378B800DE77E4AD01EDCD1280072326E94CC7F9195A9AE1C8D5B829467129E14E9370F038922195F7D7FC6D7AB38936BBBC59C6C51B406783DA5C6D6567F00CB2B2AF25FD94881D778037C0EB183F8E009861; VFAanon=82GiHFGPKOy-L41M6_huRwSQi3a9FrKsTxn8DLe9u9G-5_4E45PebhWPaRXIcrD75UH17jCEDam8dBaRxfr7MOVXANsTmfdxLNxfGfGsWnq2y7yULGQg7BcCnFVfqmoMWOEp-w2; Violette=bIkdCP9-GSCYa2OhlgT3wakdXVcNXKlK1-VMT5WKlnHquMi7gMk3uIuXuEf87i7KZqH-13GVbwaqNV_7zj-pWgObGgZZPzUING_2tWJGlaLNkM4pUU6ttrVAdjyOn9bjTUBlDw2; __AntiXsrfToken=cde04d3ee0d74a9ba9af775e3dc13bb4" />
    </item>
    <item
      name="HTTP_HOST">
      <value
        string="localhost:60825" />
    </item>
    <item
      name="HTTP_REFERER">
      <value
        string="http://localhost:60825/VFA4/Account/Login?ReturnUrl=%2fVFA4%2fAdmin%2fAdm-VFAMembers.aspx" />
    </item>
    <item
      name="HTTP_USER_AGENT">
      <value
        string="Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/32.0.1700.72 Safari/537.36" />
    </item>
  </serverVariables>
  <cookies>
    <item
      name=".ASPXANONYMOUS">
      <value
        string="YUThibsmzwEkAAAANWNhZGVjOTItNGQzNS00NmM3LTk3NjYtMTBkODAyYTBiODJhdYxJPubvb1GGRcsjrVicS0N3hCM1" />
    </item>
    <item
      name="VFA">
      <value
        string="ID=0&amp;Name=Visitor&amp;ACLSite=0&amp;LoggedIn=false&amp;Profile=0&amp;Greeting=Visitor&amp;Email=" />
    </item>
    <item
      name="FCOCRV.ASPXAUTH">
      <value
        string="2EB2E728E7546828599E7059AC071774F1B68DE36945B303364F8DE61A99F4DAEA1378B800DE77E4AD01EDCD1280072326E94CC7F9195A9AE1C8D5B829467129E14E9370F038922195F7D7FC6D7AB38936BBBC59C6C51B406783DA5C6D6567F00CB2B2AF25FD94881D778037C0EB183F8E009861" />
    </item>
    <item
      name="VFAanon">
      <value
        string="82GiHFGPKOy-L41M6_huRwSQi3a9FrKsTxn8DLe9u9G-5_4E45PebhWPaRXIcrD75UH17jCEDam8dBaRxfr7MOVXANsTmfdxLNxfGfGsWnq2y7yULGQg7BcCnFVfqmoMWOEp-w2" />
    </item>
    <item
      name="Violette">
      <value
        string="bIkdCP9-GSCYa2OhlgT3wakdXVcNXKlK1-VMT5WKlnHquMi7gMk3uIuXuEf87i7KZqH-13GVbwaqNV_7zj-pWgObGgZZPzUING_2tWJGlaLNkM4pUU6ttrVAdjyOn9bjTUBlDw2" />
    </item>
    <item
      name="__AntiXsrfToken">
      <value
        string="cde04d3ee0d74a9ba9af775e3dc13bb4" />
    </item>
  </cookies>
</error>

我无法确定错误是在ELMAH进程中还是在某个地方的底层代码中。我已经检查了与ELMAH相关的web.config中的电子邮件信息，并且所有电子邮件地址都已正确格式化。

在12月的某个时候，一切都在开发机器上运行良好，突然之间出现了这种情况。