html – Runtime error 91 when pulling Google Translate Output-ThrowExceptions

Exception or error:

I’m making a VBA function which will translate text to another language by pulling the translated text from Google Translate using “getelementsByClassName”. I’m pulling the correct information, and aside from an error popping up, the code works. However, I’m running into

runtime error 91 – Obj var or with block var not set

once the code reaches
x = element.Item(0).innerText in the code below. Once I click debug and continue the script, the code does exactly as I expect, and assigns the correct translation as a string to the temporary variable I’ve used, x.

Anyone know why this error is popping up and why it doesn’t seem to matter once I continue the script? If there’s a different version of application.DisplayAlerts that I can throw around this line to make the error not show up that would suffice as well.

I’ve just used the google translate webpage for translating “Hello World” to spanish for simplicity here.

Public Sub Translate()

Dim page As String
page = ""

Dim IE As New InternetExplorer
IE.navigate page

'Wait til webpage is fully loaded
    Application.StatusBar = "Loading translation..."

Dim element As IHTMLElementCollection
Set element = IE.document.getElementsByClassName("result-shield-container tlid-copy-target")

Dim x As String
x = element.Item(0).innerText
MsgBox x

End Sub


Problem ended up being a timing issue where getElementsByClassName was being run before IE was fully loaded. Tried adding Or IE.Busy and every combination of .Busy and .readyState that I could think of while still coming into the problem. Using a Sleep routine worked for a while, however successive iterations would run into the same error. Found a working method from one article which used the following method, which uses the first while to ensure the next until is not skipped.

   Do While .readyState = 4: DoEvents: Loop
   Do Until .readyState = 4: DoEvents: Loop
   Do While .Busy: DoEvents: Loop
   Do Until .Busy: DoEvents: Loop
How to solve:

Leave a Reply

Your email address will not be published. Required fields are marked *