WordPress.org

1. edsilva7
   Member
   Posted 1 year ago #
   

   I noticed that there's a lot of frustration about this issue in both WordPress and Longtail forums.

   I made a video tutorial showing how to install & upgrade JW player WordPress plugin and avoid this error

   http://www.eduardosilva.biz/jw-player-for-wordpress-the-plugin-does-not-have-a-valid-header-error/

   I hope this will help you

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