获取Google搜索的网址结果时出错.

我是VBA的新手,我认为尝试编码是最好的编码方式.无论如何,我正在尝试编写一个宏,它将获得Google搜索结果的第一个URL,但是Object variable or With block variable not set当搜索结果为0时我收到错误,并且跳过剩余的操作.这是错误图像:

这是我使用的代码:

Sub XMLHTTP()

   Dim url As String, lastRow As Long
   Dim XMLHTTP As Object, html As Object, objResultDiv As Object, objH3 As Object, link As Object
   Dim start_time As Date
   Dim end_time As Date

   lastRow = Range("A" & Rows.Count).End(xlUp).Row

   Dim cookie As String
   Dim result_cookie As String

   start_time = Time
   Debug.Print "start_time:" & start_time

   For i = 2 To lastRow

      url = "https://www.google.co.in/search?q=" & Cells(i, 1) & "&rnd=" & WorksheetFunction.RandBetween(1, 10000)

      Set XMLHTTP = CreateObject("MSXML2.serverXMLHTTP")
      XMLHTTP.Open "GET", url, False
      XMLHTTP.setRequestHeader "Content-Type", "text/xml"
      XMLHTTP.setRequestHeader "User-Agent", "Mozilla/5.0 (Windows NT 6.1; rv:25.0) Gecko/20100101 Firefox/25.0"
      XMLHTTP.send

      Set html = CreateObject("htmlfile")
      html.body.innerHTML = XMLHTTP.ResponseText
      Set objResultDiv = html.getelementbyid("rso")
      Set objH3 = objResultDiv.getElementsByTagName("H3")(0)
      Set link = objH3.getElementsByTagName("a")(0)


      str_text = Replace(link.innerHTML, "", "")
      str_text = Replace(str_text, "", "")

      Cells(i, 2) = str_text
      Cells(i, 3) = link.href
      DoEvents
   Next

   end_time = Time
   Debug.Print "end_time:" & end_time

   Debug.Print "done" & "Time taken : " & DateDiff("n", start_time, end_time)
   MsgBox "done" & "Time taken : " & DateDiff("n", start_time, end_time)
End Sub

有人可以帮我吗？