Ketrew API : Ketrew.Persistent_data.Synchronize.Error

sig
  val to_string :
    string * string *
    [< `Database of Ketrew.Persistent_data.Error.database
     | `IO of
         [< `Exn of exn
          | `File_exists of string
          | `Read_file_exn of string * exn
          | `Write_file_exn of string * exn
          | `Wrong_path of string ]
     | `System of
         [< `Copy of string
          | `File_info of string
          | `File_tree of string
          | `List_directory of string
          | `Make_directory of string
          | `Make_symlink of string * string
          | `Move of string
          | `Remove of string ] *
         [< `Already_exists
          | `Exn of exn
          | `File_exists of string
          | `File_not_found of string
          | `IO of
              [< `Exn of exn
               | `File_exists of string
               | `Read_file_exn of string * exn
               | `Write_file_exn of string * exn
               | `Wrong_path of string ]
          | `Not_a_directory of string
          | `Wrong_access_rights of int
          | `Wrong_file_kind of string * Pvem_lwt_unix.System.file_info
          | `Wrong_path of string ]
     | `Target of [< `Deserilization of string ]
     | `Unknown_uri_scheme of string * string option
     | `Weird_file of string ] ->
    string
end