Steps to reproduce:

  1. Install Magento 2.1 by download
  2. Install custom theme by uploading it in app/design/frontend folder
  3. update magento, clear all caches, compile, deploy etc.
  4. Assign theme in backend
  5. Remove theme by deleting the folder again and deleting theme entry in database table “theme”

But In back-end when trying to assign the theme the error: “Unable to load theme by specified key”appears.

Anyone can help me?

1 Answers
Best Answer


Please have a look of our  magento2 new storefront theme development article that will solve your problem.

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