Tag Archives: FBA

LDAP Role Provider Argument Exception

If you’re seeing the following error in the ULS logs, hopefully it’ll be as simple a fix for you as it was for me: LdapRoleProvider.GetRolesFor() exception: {0}.System.ArgumentException: The (&(((ObjectClass=group))(member=CN=Some User,CN=Users,DC=domain,DC=local)) search filter is invalid. at System.DirectoryServices.SearchResultCollection.ResultsEnumerator.MoveNext() at Microsoft.Office.Server.Security.LdapRoleProvider.GetRolesFor(String userOrGroupDN, DirectoryEntry … Continue reading

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