The errors which exist are implementation defined.
Success: [eclipse]: string_list(S,L). instantiation fault in string_list(_g50, _g52) [eclipse]: set_error_handler(4,true/0), string_list(S,L). S = _g56 L = _g58 yes. [eclipse]: reset_error_handler(4), string_list(S,L). instantiation fault in string_list(_g62, _g64) Error: reset_error_handler(N). (Error 4). reset_error_handler(5.0). (Error 5). reset_error_handler(1000). (Error 6).