The exercise file attached is for an earlier lecture

Hi Sachintha!

Thanks for reaching out and pointing this out!

Please download the relevant file from this temporary link
https://we.tl/t-vWuUEgBBNP
while we update the corrsponding link in the lecture you've referred to (this may take a couple of days before the file becomes visible on your end).

Hope this helps.
Kind regards,
Martin

Thank you!

You are very welcome!
Best,
Martin