{"id":2275105,"date":"2011-09-01T17:16:11","date_gmt":"2011-09-01T17:16:11","guid":{"rendered":"https:\/\/wordpress.org\/support\/topic\/plugin-generates-cannot-modify-header-errors-renders-wp-admin-inoperable\/"},"modified":"2016-08-20T02:15:00","modified_gmt":"2016-08-20T02:15:00","slug":"plugin-generates-cannot-modify-header-errors-renders-wp-admin-inoperable","status":"closed","type":"topic","link":"https:\/\/wordpress.org\/support\/topic\/plugin-generates-cannot-modify-header-errors-renders-wp-admin-inoperable\/","title":{"rendered":"Plugin generates &quot;Cannot modify header&quot; errors, renders wp-admin inoperable"},"content":{"rendered":"<p>Dear SiteBrains team,<br \/>\nI came across your plugin recently (via a Quora post, actually), and decided to try it out.<br \/>\nI installed SiteBrains plugin version 6.2.1 (I&#8217;m running WordPress version 3.2.1). It installed and activated seemingly without trouble, however, when I go to perform pretty much any administrative action (save a settings, moderate a comment), I get a blank page and the same error as in this post: https:\/\/wordpress.org\/support\/topic\/i-cant-log-in-to-wp-admin<br \/>\nSpecifically,<br \/>\n<code>&quot;Warning: Cannot modify header information - headers already sent by (output started at \/*my site*\/public_html\/wp-content\/plugins\/sitebrains-1\/Index.php:1) in \/*my site*\/public_html\/wp-includes\/pluggable.php on line 934&quot;<\/code><\/p>\n<p>Disabling your plugin fixed the errors, but I would certainly like to give it another try, if fixed.<\/p>\n<p>Some more details:<br \/>\nTo see if any of my plugins are interfering with SiteBrains, I deactivated all my other plugins and re-Activated SiteBrains. Incidentally, during re-activation, I got the following warning from WordPress:<br \/>\n<code>The plugin generated 3 characters of unexpected output during activation. If you notice \u201cheaders already sent\u201d messages, problems with syndication feeds or other issues, try deactivating or removing this plugin.<\/code><\/p>\n<p>Anyways, the same error was generated even when SiteBrains was the only active error.<\/p>\n<p>I&#8217;m happy to provide any other diagnostics info.<\/p>\n","protected":false},"template":"","class_list":["post-2275105","topic","type-topic","status-closed","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/wordpress.org\/support\/wp-json\/wp\/v2\/topic\/2275105","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wordpress.org\/support\/wp-json\/wp\/v2\/topic"}],"about":[{"href":"https:\/\/wordpress.org\/support\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/wordpress.org\/support\/wp-json\/wp\/v2\/topic\/2275105\/revisions"}],"wp:attachment":[{"href":"https:\/\/wordpress.org\/support\/wp-json\/wp\/v2\/media?parent=2275105"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}