Image(in size which given in admin) not created when uploading image

[triveniethnics]

Hi
Image(in size which given in admin) not created in media/base/295x462 when creating new product with image or updating image of existing product.
Only placeholders are created in media/base/295x462

As shown in attached screenshot , set prefix= base, size=295x462

if we want to create images in given sizes in path like below which our existing default path for size images. how will it be possible ?
media/catalog/product/cache/4/small_image/295x462/9df78eab33525d08d6e5fb8d27136e95/t/s/ts123.jpg

Our magento community version is 1.9.2.4

Thanks.