Dynamics crm 2011 CRM 2011高级查找错误

我有一个组织，无论实体是什么，每个高级查找请求都会立即失败。我在其他任何地方都找不到这种情况发生在CRM中的例子。有人见过这个吗

错误是：

    >MSCRM Error Report:
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Error: A potentially dangerous Request.Form value was detected from the client (FetchXml="<fetch version="1.0"...").

Error Message: ASP.NET has detected data in the request that is potentially dangerous because it might include HTML markup or script. The data might represent an attempt to compromise the security of your application, such as a cross-site scripting attack. If this type of input is appropriate in your application, you can include code in a web page to explicitly allow it. For more information, see http://go.microsoft.com/fwlink/?LinkID=212874.

Error Details: A potentially dangerous Request.Form value was detected from the client (FetchXml="<fetch version="1.0"...").

Source File: Not available

Line Number: Not available

Request URL: http://crmdev02/xxxxx/AdvancedFind/fetchData.aspx?pagemode=iframe&sitemappath=Workplace%7cMyWork%7cnav_dashboards

Stack Trace Info: [HttpRequestValidationException: A potentially dangerous Request.Form value was detected from the client (FetchXml="<fetch version="1.0"...").]
   at System.Web.HttpRequest.ValidateString(String value, String collectionKey, RequestValidationSource requestCollection)
   at System.Web.HttpRequest.ValidateHttpValueCollection(HttpValueCollection collection, RequestValidationSource requestCollection)
   at System.Web.HttpRequest.get_HasForm()
   at System.Web.UI.Page.GetCollectionBasedOnMethod(Boolean dontReturnNull)
   at System.Web.UI.Page.DeterminePostBackMode()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   at System.Web.UI.Page.ProcessRequest()
   at System.Web.UI.Page.ProcessRequest(HttpContext context)
   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

>MSCRM错误报告：
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错误：一个潜在的危险请求。从客户端检测到表单值（FetchXml=“我不确定为什么这仍然是一个问题，但此解决方案对我有效：