Title: Error When Uploading PDF Last modified: August 21, 2016 --- # Error When Uploading PDF * Resolved [TKPM](https://wordpress.org/support/users/tkpm/) * (@tkpm) * [13 years, 1 month ago](https://wordpress.org/support/topic/error-when-uploading-pdf/) * Hi, I’m receiving the following error code when trying to upload pdf files: * Warning: in_array() expects parameter 2 to be array, null given in /home/content/ 24/10812624/html/wp-content/plugins/frontend-uploader/frontend-uploader.php on line 198 * Warning: Cannot modify header information – headers already sent by (output started at /home/content/24/10812624/html/wp-content/plugins/frontend-uploader/frontend- uploader.php:198) in /home/content/24/10812624/html/wp-includes/pluggable.php on line 876 * [http://wordpress.org/extend/plugins/frontend-uploader/](http://wordpress.org/extend/plugins/frontend-uploader/) Viewing 15 replies - 1 through 15 (of 21 total) 1 [2](https://wordpress.org/support/topic/error-when-uploading-pdf/page/2/?output_format=md) [→](https://wordpress.org/support/topic/error-when-uploading-pdf/page/2/?output_format=md) * Thread Starter [TKPM](https://wordpress.org/support/users/tkpm/) * (@tkpm) * [13 years, 1 month ago](https://wordpress.org/support/topic/error-when-uploading-pdf/#post-3645951) * Sorry, forgot to mention I’m using Firefox 19.0.2 * Plugin Author [Rinat](https://wordpress.org/support/users/rinatkhaziev/) * (@rinatkhaziev) * [13 years, 1 month ago](https://wordpress.org/support/topic/error-when-uploading-pdf/#post-3646051) * What version of Frontend Uploader do you use? * Thread Starter [TKPM](https://wordpress.org/support/users/tkpm/) * (@tkpm) * [13 years, 1 month ago](https://wordpress.org/support/topic/error-when-uploading-pdf/#post-3646053) * I’m on Version 0.5. * Plugin Author [Rinat](https://wordpress.org/support/users/rinatkhaziev/) * (@rinatkhaziev) * [13 years, 1 month ago](https://wordpress.org/support/topic/error-when-uploading-pdf/#post-3646080) * Hey I found the cause of this, Please download v0.5.1 that should take care of it: [http://wordpress.org/extend/plugins/frontend-uploader/](http://wordpress.org/extend/plugins/frontend-uploader/) * Thread Starter [TKPM](https://wordpress.org/support/users/tkpm/) * (@tkpm) * [13 years, 1 month ago](https://wordpress.org/support/topic/error-when-uploading-pdf/#post-3646088) * Great, thanks for the quick update! * The only other error is now when I try to upload the pdf, it says it’s not an allowed file type, even though I have .pdf checked under the Settings. Do also need to notate it under allowed categories? * Plugin Author [Rinat](https://wordpress.org/support/users/rinatkhaziev/) * (@rinatkhaziev) * [13 years, 1 month ago](https://wordpress.org/support/topic/error-when-uploading-pdf/#post-3646091) * No it should work as is, * However, with mime-types it sometimes can be difficult. Can you try to upload and doc or docx files and see if they go through? * Plugin Author [Rinat](https://wordpress.org/support/users/rinatkhaziev/) * (@rinatkhaziev) * [13 years, 1 month ago](https://wordpress.org/support/topic/error-when-uploading-pdf/#post-3646093) * Also, check the faq section, there’s some explanation why this might happen * Thread Starter [TKPM](https://wordpress.org/support/users/tkpm/) * (@tkpm) * [13 years, 1 month ago](https://wordpress.org/support/topic/error-when-uploading-pdf/#post-3646094) * I received the same error for the doc file. I’ll also check the faq section in the meantime. * Thread Starter [TKPM](https://wordpress.org/support/users/tkpm/) * (@tkpm) * [13 years, 1 month ago](https://wordpress.org/support/topic/error-when-uploading-pdf/#post-3646125) * As a test, I also tried a psd file and received the same error. Also, when I tried updating the functions.php (using the Twenty Twelve theme) with the code from the faq, I received the following error: * Parse error: syntax error, unexpected T_STRING in /home/content/24/10812624/html/ wp-content/themes/twentytwelve/functions.php on line 455 * Plugin Author [Rinat](https://wordpress.org/support/users/rinatkhaziev/) * (@rinatkhaziev) * [13 years, 1 month ago](https://wordpress.org/support/topic/error-when-uploading-pdf/#post-3646127) * Oh example is missing trailing semicolon * `add_filter( 'fu_is_debug', '__return_true' );` * Try this and see what mime-type is causing troubles. Are you trying it locally or on the server? * Thread Starter [TKPM](https://wordpress.org/support/users/tkpm/) * (@tkpm) * [13 years, 1 month ago](https://wordpress.org/support/topic/error-when-uploading-pdf/#post-3646130) * Ok, I entered that from the Network Admin Dashboard. Odd thing is, whether or not I add a semicolon at the end, I still receive the syntax error. My apologies in advance, I’m not too familiar with php! * Plugin Author [Rinat](https://wordpress.org/support/users/rinatkhaziev/) * (@rinatkhaziev) * [13 years, 1 month ago](https://wordpress.org/support/topic/error-when-uploading-pdf/#post-3646133) * No worries! * Hmm, the corrected version is perfectly valid and should not produce parse errors. Can you post the surrounding lines of where you pasted it? * Thread Starter [TKPM](https://wordpress.org/support/users/tkpm/) * (@tkpm) * [13 years, 1 month ago](https://wordpress.org/support/topic/error-when-uploading-pdf/#post-3646138) * I pasted it at the very end of functions.php, right after * add_action( ‘customize_preview_init’, ‘twentytwelve_customize_preview_js’ ); * Just tested another pdf and no dice. * Now here’s the crazy thing- whenever I try going into the site dashboard, even after I removed and reinstalled the Twenty Twelve theme, I keep getting that Parse error. * Plugin Author [Rinat](https://wordpress.org/support/users/rinatkhaziev/) * (@rinatkhaziev) * [13 years, 1 month ago](https://wordpress.org/support/topic/error-when-uploading-pdf/#post-3646147) * That’s weird. It should either break everywhere (like it happened to you when you first trying pasting that line) or work everywhere. Try to delete the folder with twentytwelve and re-upload again. * Thread Starter [TKPM](https://wordpress.org/support/users/tkpm/) * (@tkpm) * [13 years, 1 month ago](https://wordpress.org/support/topic/error-when-uploading-pdf/#post-3646148) * Ok, I deleted the folder, re-uploaded, cleared cache on browser, logged out and logged back in, still getting error when trying to open site dashboard (I’m on a WPMU setup by the way). However, if I visit the site and click on Edit, I can still get into the dashboard from there, just not from the “Dashboard” link itself. * In regards to receiving errors when trying to upload the pdf and psd files, is there any other code (or a better place in functions.php) I should enter aside from * add_filter( ‘fu_allowed_mime_types’, ‘my_fu_allowed_mime_types’ ); * ? Viewing 15 replies - 1 through 15 (of 21 total) 1 [2](https://wordpress.org/support/topic/error-when-uploading-pdf/page/2/?output_format=md) [→](https://wordpress.org/support/topic/error-when-uploading-pdf/page/2/?output_format=md) The topic ‘Error When Uploading PDF’ is closed to new replies. * ![](https://s.w.org/plugins/geopattern-icon/frontend-uploader_81a69d.svg) * [Frontend Uploader](https://wordpress.org/plugins/frontend-uploader/) * [Frequently Asked Questions](https://wordpress.org/plugins/frontend-uploader/#faq) * [Support Threads](https://wordpress.org/support/plugin/frontend-uploader/) * [Active Topics](https://wordpress.org/support/plugin/frontend-uploader/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/frontend-uploader/unresolved/) * [Reviews](https://wordpress.org/support/plugin/frontend-uploader/reviews/) ## Tags * [pdf](https://wordpress.org/support/topic-tag/pdf/) * [upload](https://wordpress.org/support/topic-tag/upload/) * 21 replies * 2 participants * Last reply from: [Rinat](https://wordpress.org/support/users/rinatkhaziev/) * Last activity: [13 years, 1 month ago](https://wordpress.org/support/topic/error-when-uploading-pdf/page/2/#post-3646238) * Status: resolved