gathered metric family process_open_fds has type UNTYPED but should have GAUGE #601

I use http request and push metric to pushgateway ,and it return 400.shows
36 error(s) occurred:\n* gathered metric family process_open_fds has type UNTYPED but should have GAUGE gathered metric family go_memstats_heap_inuse_bytes has type UNTYPED but should have GAUGE gathered metric family go_memstats_heap_released_bytes has type UNTYPED but should have GAUGE gathered metric family go_memstats_last_gc_time_seconds has type UNTYPED but should have GAUGE gathered metric family go_memstats_alloc_bytes has type UNTYPED but should have GAUGE collected metric named \"go_gc_duration_seconds_sum\" collides with previously collected summary named \"go_gc_duration_seconds\" gathered metric family go_memstats_mspan_inuse_bytes has type UNTYPED but should have GAUGE\n* gathered metric family go_info has type UNTYPED but should have GAUGE...

I don't know what's wrong with my metrcis data.