The prefix you've specified is applied to the resource path inside the app. It doesn't apply to the real path of the file. The correct resource should be:
<RCC>
<qresource prefix="/images">
<file>images/image.png</file>
</qresource>
</RCC>
And the resource path will be :/images/images/image.png
.
You can also specify prefix="/"
in RCC file and use ://images/image.png
resource path. I think it's more convenient.