If you’re new to Photoshop or Photopea, you might be perplexed by one of the following errors: “smart object must be rasterized first”, “smart object must be rasterized,” or “this smart object must be rasterized before proceeding.” Regardless of the exact wording of the error, they all mean the same thing.
See below to learn why this common error occurs and how to rasterize Smart Objects to fix the problem and get back to editing.