Ruby on Rails - Unable to add "".jpg" file -

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i new ruby on rails.

i want add ".jpg" file under /public/images folder.

can me? when navigate add new page, don't see picture format in menu.

please asap.

if working rails3.1 or next of that, there app/assets/images folder in application directory. , there default image rails.png available. add images on there , use them follows:
<%= image_tag "/assets/rails.png"%>


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