Submit Feedback
Legacy Knowledge Base
Published Jul. 2, 2025

"Version specific upgrade task must return function" error when running gulp upgrade command

Written By

Alfonso Crisci

How To articles are not official guidelines or officially supporteddocumentation. They are community-contributed content and may not alwaysreflect the latest updates to Liferay DXP. We welcome your feedback toimprove How to articles!

While we make every effort to ensure this Knowledge Base is accurate, itmay not always reflect the most recent updates or official guidelines.We appreciate your understanding and encourage you to reach out with anyfeedback or concerns.

Legacy Article

You are viewing an article from our legacy "FastTrack"publication program, made available for informational purposes. Articlesin this program were published without a requirement for independentediting or verification and are provided "as is" withoutguarantee.

Before using any information from this article, independently verify itssuitability for your situation and project.

Issue

  • While upgrading a theme created with Theme Generator and running the step of upgrading the theme itself (gulp upgrade), the below error message will be returned:
    [18:20:11] Starting 'upgrade'...
    [18:20:11] 'upgrade' errored after 680 μs
    [18:20:11] Error in plugin "gulp-theme-upgrader"
    Message:
     Version specific upgrade task must return function.

Environment

  • Liferay DXP 7.0+

Resolution

  • Supply the final destination version as an argument to the command. For example, for 7.2 DXP:
    gulp upgrade -v 7.2

Additional Information

 

Did this article resolve your issue ?
Legacy Knowledge Base
Did this article resolve your issue ?