EXCEL VBA - 运行时错误91对象变量或未设置块变量

Question

我是宏的新手，所以我只编写了一组行，我得到一个运行时error 91说明＆＃34;对象变量或者没有设置块变量＆＃34;

下面提到了代码段

Public Function getreq()   
    Dim ie As InternetExplorer
    Dim elem As HTMLBaseElement
    Dim url As String
    url = "myURL"
    Set ie = New InternetExplorer
    ie.Visible = True
    ie.Navigate url
    WaitBrowserQuiet ie

    Set elem = getXPathElement("id('list-display-wrapper-left')/x:span/x:span[5]", ie.Document)
    MsgBox (elem.innerText)

    Set ie = Nothing


End Function

Code Snippet image