Title: Error using Utopia Plugin Last modified: August 18, 2016 --- # Error using Utopia Plugin * [AnnaF](https://wordpress.org/support/users/annaf/) * (@annaf) * [20 years, 9 months ago](https://wordpress.org/support/topic/error-using-utopia-plugin/) * I just set up my blog a couple of weeks ago and am trying to use David Pankhurst’s Utopia plugin. I followed the instructions to the letter, and when I activate it, I get this error message when I go into …/blog/wp-admin/ * Warning: Cannot modify header information – headers already sent by (output started at /home/dogsup/public_html/blog/wp-content/plugins/utopia1.php:104) in /home/ dogsup/public_html/blog/wp-admin/admin.php on line 10 * for lines 10, 11, 12, 13, which are all the header lines in admin.php. This error comes up for other files that have the same header-type lines in them, throwing the same error with the accessed filename and line numbers. * I’ve changed access permissions to everything I thought might be affected. Any suggestions? I’m totally stumped. Viewing 1 replies (of 1 total) * [moshu](https://wordpress.org/support/users/moshu/) * (@moshu) * [20 years, 9 months ago](https://wordpress.org/support/topic/error-using-utopia-plugin/#post-261796) * This might be helpful: [http://codex.wordpress.org/FAQ_Troubleshooting#How_do_I_solve_the_Headers_already_sent_warning_problem.3F](http://codex.wordpress.org/FAQ_Troubleshooting#How_do_I_solve_the_Headers_already_sent_warning_problem.3F) You could also just type the first 4-5 words of the error message here in the Search box 🙂 Viewing 1 replies (of 1 total) The topic ‘Error using Utopia Plugin’ is closed to new replies. * 1 reply * 2 participants * Last reply from: [moshu](https://wordpress.org/support/users/moshu/) * Last activity: [20 years, 9 months ago](https://wordpress.org/support/topic/error-using-utopia-plugin/#post-261796) * Status: not resolved ## Topics ### Topics with no replies ### Non-support topics ### Resolved topics ### Unresolved topics ### All topics