WP 2.5: Fatal error: Call to undefined function register_sidebar()

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  • Moderator Samuel Wood (Otto)

    (@otto42)

    www.ads-software.com Admin

    No, it basically means that you didn’t upload all the WordPress files to your server. Some of them didn’t get there, or were incomplete, or what have you. This is an extremely common error for people to make. Not sure why, exactly.

    Try again, and double check that all the files get there.

    Thread Starter barretoivoski

    (@barretoivoski)

    I had re-uploaded wp-admin and still with error. I’m just re-uploading all files.

    I got this error aswell, and I found the reason was because I had the Disable WordPress Widgets plugin. So I just deleted that plugin’s folder, and it fixed it.

    Thread Starter barretoivoski

    (@barretoivoski)

    Sorry. It was an error from my part.

    Re-uploading it worked. ??

    Same error here.

    My Fix: I remembered that I left my plug ins on during the upgrade. So, I pointed to the plugins page manually. It came up and I disabled the plugins and it worked after that.

    Disable WordPress Widgets Plugin, a plugin to make K2 theme compatible with integrated widgets of wordpress trigger this error

    ckinformation

    (@ckinformation)

    When I go to any of the tabs i continue to get the Call to undefined function register_sidebar messaage.

    I do not seem to get back to my original blog?

    When I go to the Plugin tab the failuare message is there.

Viewing 7 replies - 1 through 7 (of 7 total)
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