Fix Could not build a preview Photoshop. In this article, Theartcult will show you how to fix “could not build a preview because of a program error“. Fix Could not build a preview Photoshop Fix 1 Adobe Photoshop Version: 20.0.4 20190227.r.76 2019/02/27: 1205725 x64 1. turn on all layers / flatten file / then save…