Sharepoint 2010 Sharepoint 2010 ldap异常FaultException`1

我已按照以下链接上的说明进行操作：

用户登录时：如果用户名和密码错误，将显示一条消息，通知用户重试

但当用户名和密码正确时，会引发异常：

    [FaultException`1: Unexpected exception occurred, please contact administrator to resolve this issue.]
   Microsoft.IdentityModel.Protocols.WSTrust.WSTrustChannel.ReadResponse(Message response) +1161205
   Microsoft.IdentityModel.Protocols.WSTrust.WSTrustChannel.Issue(RequestSecurityToken rst, RequestSecurityTokenResponse& rstr) +73
   Microsoft.IdentityModel.Protocols.WSTrust.WSTrustChannel.Issue(RequestSecurityToken rst) +36
   Microsoft.SharePoint.SPSecurityContext.SecurityTokenForContext(Uri context, Boolean bearerToken, SecurityToken onBehalfOf, SecurityToken actAs, SecurityToken delegateTo) +26618417
   Microsoft.SharePoint.SPSecurityContext.SecurityTokenForFormsAuthentication(Uri context, String membershipProviderName, String roleProviderName, String username, String password, Boolean isPersistent) +26623308
   Microsoft.SharePoint.IdentityModel.Pages.FormsSignInPage.GetSecurityToken(Login formsSignInControl) +210
   Microsoft.SharePoint.IdentityModel.Pages.FormsSignInPage.AuthenticateEventHandler(Object sender, AuthenticateEventArgs formAuthenticateEvent) +123
   System.Web.UI.WebControls.Login.AttemptLogin() +152
   System.Web.UI.WebControls.Login.OnBubbleEvent(Object source, EventArgs e) +124
   System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +70
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +29
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2981

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最后我找到了解决方案，这是因为web.config中的角色提供程序出错，CN值错误

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