Headers Already Sent Warning

  • Resolved cguansoo

    (@cguansoo)


    11 years ago

    I installed your plugin earlier on and used it without any issue.

    Recently, I migrated to a new server. I used Permalink, but I forgot to deactivate the Permalink before I migrated.

    After I’ve migrated, I got this error on some of the network, and when I tried to login /wp-admin:

    Warning: Cannot modify header information – headers already sent by (output started at /home/gafrisna/public_html/wp-content/plugins/wp-photo-album-plus/wppa-slideshow-widget.php:527) in /home/gafrisna/public_html/wp-includes/pluggable.php on line 899

    Once I’ve deactived the plugin from the database, it is back to normal.

    I tried to switch the permalink to default and reactivate the plugin again, after reactivating, it gives this message on the dashboard:

    The plugin generated 6 characters of unexpected output during activation. If you notice “headers already sent” messages, problems with syndication feeds or other issues, try deactivating or removing this plugin.

    Can you assist to identify how I should do in order to resolve this. I still want to use the plugin. I can do away with the Permalink structure.

    Regards,
    Guan

    https://ww.wp.xz.cn/plugins/wp-photo-album-plus/

Viewing 2 replies - 1 through 2 (of 2 total)
  • Plugin Author Jacob N. Breetvelt

    (@opajaap)

    11 years ago

    output started at /home/gafrisna/public_html/wp-content/plugins/wp-photo-album-plus/wppa-slideshow-widget.php:527

    wppa-slideshow-widget.php has only 276 lines.

    Having a non-default permalink structure is ok.

    I think there went something wrong with the installation.

    De-activate and delete the plugin. Than re-install as if it is a new plugin. You will loose no data, photos, albums settings or whatever.

    Thread Starter cguansoo

    (@cguansoo)

    11 years ago

    Hi Jacob,

    Yup, re-installed and rebuilt the index files and all is well.

    Thank you so much your feedback.

    You’re awesome! 🙂

    Regards,
    Guan

Viewing 2 replies - 1 through 2 (of 2 total)

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