I can relink a psd file to a jpeg file but not multiple files at once

Question

Initially I posted a question yesterday that Bob Levine helpfully answered -
How to update all psds in Indesign doc to jpegs?
Bob answered with - "You can batch convert them in Photoshop and save them in a new folder.  As long as the file names are the same you can relink them easily by  using the relink to folder command from the links panel. There's a  choice in there to relink to the same name with a new extension."
This worked fine if I did the following:
Right click on PSD file I want to relink in the Links panel, choose relink, select the jpeg file in the folder.
However if I select all the PSD files in the links panel, choose relink to folder command, choose the folder along with ticking the box for "match same filename but  this extension: jpeg"
I get an error message "Failed to find ** links in new folder.These links will not be relinked and will remain selected in the Links Panel."
The same thing happens if I select all the links and select "Relink File Extension" (This time I've placed all the jpeg files with exact same filename in the same folder as the original PSD files).
So, I still can't do multiple relinks without having to individually select each file I want to relink. Does anyone know what could be preventing Indesign from relinking all my files at once?
Desperately in need of an answer and thanking you in advance for all your time and understanding.
Regards,
Fuiru

Answer 1

Nope I wasn't putting a dot in the file extenstion
field BUT I was putting "jpeg" instead "jpg".
Now it works. Thanks Peter.