Am trying to fetch YouTube channel Information using the YouTube API but im getting this error. I have tried adding a null checker but it doesn't work

Main.dart

void initState() {
super.initState();
_loading = true;
_nextPageToken = '';
_scrollController = ScrollController();
_videosList = VideosList(
etag: '', 
nextPageToken: '', 
videos: [], 
kind: '', 
pageInfo: null);

This is where the error is. The argument type 'Null' cant be assigned to 'PageInfo'

_videosList.videos = [];
_getChannelInfo();
}

Here is my class

class VideosList {
VideosList({
required this.kind,
required this.etag,
required this.nextPageToken,     
required this.videos,
required this.pageInfo,
});