Hello all, I keep getting this error in the crawler log "Site Data Web Service: (*** Value cannot be null. Parameter name: s)" when trying to crawl some pdf files. It is really strange because I can crawl some pdfs and others I keep getting the error. I already tried to recreate the SSP, update the ifilters, rebooted the server, etc.. and I still get the same errors. Any thoughts. Thanks for the help. Best Regards, Andr PS: Already posted another topic with a somehow related problem http://social.technet.microsoft.com/Forums/en-US/sharepointadmin/thread/bb0b134a-2b59-4db8-a9e2-e0a3085b1879

Hello all, Recent updated on this issue. I do not know if it is coincidence but the document library that is being crawled all the items have unique permissions. When I reset the permission the crawler is able to index the item. I can confirm that the unique permission items can be accessed by the SSP account. Any thoughts, Best Regards, Andr

Hi arec, If you use Windows Authentication. Configure your SharePoint Sites, set the authentication model to Windows Authentication: Open the web.config file, specify the <authentication> element to <authentication mode="Windows" />:http://blogs.msdn.com/b/jjameson/archive/2009/11/09/configuring-ssl-on-sharepoint-sites.aspx. Then try to call the Web Service as following: Web_Reference_Name.SiteData srvSiteData = new Web_Reference_Name.SiteData(); srvSiteData.Credentials = System.Net.CredentialCache.DefaultCredentials; srvSiteData.Url="http://<Site>/_vti_bin/SiteData.asmx" // string items = srvSiteData.GetListItems("{e5c6603b-0f6c-4bd9-8bb1-57c83854308b}", "<Where><Eq><FieldRef Name=\"Field\"/><Value Type=\"Number\">1450</Value></Eq></Where>", "<FieldRef Name=\"Title\"/><FieldRef Name=\"Number\"/>", 100); label1.Text = items; If you use the Form authentication, specify the <authentication> element as this: <authentication mode="Forms"> <forms loginUrl="/Public/Pages/default.aspx" defaultUrl="/" /> </authentication> Then change the srvSiteData.Credentials = System.Net.CredentialCache.DefaultCredentials; to srvSiteData.Credentials=new CredentialCache().Add(url,string,new NetworkCredential(UserName,SecurelyStoredPassword)); Thanks, Lhan Han