Quick answer: Vulkan vkCreateImageView failing because aspect mask doesn't match the image format? Format determines aspect (color, depth, etc.); pick the right aspect for the view's purpose.
Depth+stencil format; trying to create a color-only view; create fails.
Use VK_IMAGE_ASPECT_DEPTH_BIT
For depth view of D+S image. View accesses depth; stencil access requires separate view.
Or VK_IMAGE_ASPECT_STENCIL_BIT
Stencil-only view. Separate from depth.
Audit aspect per view
Each view's aspect should match its intended access. Mismatch = creation failure.
“Aspect masks are typed. Format determines allowed types.”
Build a small helper: format -> default aspect mapping. Manual lookup surfaces this bug repeatedly.