关于#django#的问题，如何解决？

今天在运行项目时遇到了这样的问题

class SpiderWeibo:
    @csrf_exempt
    def SpiderAPI(request):
        res = {}
        if request.method == "POST":
            text = request.POST.get("weiboId")
            page = request.POST.get("page")
            if not page: #默认page 为1
                page = 1
            else:
                page = int(page) #get过来的page参数是字符串
            try:
                UserInfo.objects.get(_id = text)        #报错！！！！！
                res['ok'] = "数据库已存在该用户，开始返回数据"
                res['data'] = serializers.serialize("json", UserInfo.objects.filter(_id=text))
                aritcles = TweetsInfo.objects.filter(UserInfo_id = text).order_by("-PubTime") #查询所有的数据
                paginator = Paginator(aritcles, 20) #对数据进行分页，每页20条
                print("=======================================")
                print(paginator.count,paginator.num_pages)
                pageData = paginator.page(page)
                res['total'] = paginator.count
                res['tweets'] = serializers.serialize("json",pageData)
                return HttpResponse(json.dumps(res))

报了这样的错误

Traceback (most recent call last):
  File "E:\graduate project\weibo-analysis-system-master\src\SpiderAPI\views.py", line 49, in SpiderAPI
    UserInfo.objects.get(_id = text)    #报错
  File "D:\anaconda\envs\gradu36\lib\site-packages\django\db\models\manager.py", line 82, in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
  File "D:\anaconda\envs\gradu36\lib\site-packages\django\db\models\query.py", line 399, in get
    self.model._meta.object_name
SpiderAPI.models.UserInfo.DoesNotExist: UserInfo matching query does not exist.

有朋友能帮我解答一下 这是为什么吗 要怎么解决呀 头疼了两天 也没找到解决方案