Photostacking

[mikaels71195823]

I have photographed 4 photos that I want to stack, they are originally RAW files, I have saved them as Jpg files. When I in PS choose: files> scripts> Load in to scripts, I run Browse and download the images. When I click OK, I get an error message that says the following:

How should I do? Have PS version 22 because my graphics card can not handle newer.

[mikaels71195823 · Accepted solution]

Solved it self, I had set the image to be a smart object when I selected Done in ACR

[JJMack]

You also did not try to stack your saved jpeg files. Jpeg file format does not support layers there are no smart object in Jpeg files. 

[Stephen_A_Marsh]

Best to avoid stacking or working with JPEG files as intermediate files if you can.