Error "headers already sent" when activating WPBook

  • Resolved Protooler

    (@protooler)


    14 years, 5 months ago

    Hi guys I have a big problem when I active the WPBook in the plugin page..
    An alert:
    The plugin generated 4 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.

    and a error:
    Warning: Cannot modify header information – headers already sent by (output started at D:\SITI\vhosts\mywebsite.com\httpdocs\wp-content\plugins\wpbook\wpbook_cron.php:689) in D:\SITI\vhosts\mywebsite.com\httpdocs\wp-content\plugins\xlanguage\xlanguage.php on line 224

    What I have to do? It’ very strange because I have tested the same configuration in another server and it was all ok!
    I hope you have the solution..
    Thanks!
    Claudio

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