Upload HTTP Error (detailed)

Sorry if I’m missing something, but what is the exact error message that you’re seeing?

Also, what is the size of the file you’re trying to upload and what are the values in your phpinfo() page for upload_max_filesize and post_max_size?

shoot, I was afraid that was the error message since it seems to be a catch-all error that isn’t easy to debug.

A few ideas:

– Do you get the same error if you attempt to upload a pdf? If no, looking at your phpinfo() page again, is GD or Imagick installed and enabled?

– Do you get the same error if you use the “browser uploader” (/wp-admin/media-new.php?browser-uploader) as well?

– if you recently installed or upgraded WordPress it might be worth a try to re-install the WordPress core files (everything except wp-content) in case there was a problem with the install/upgrade.

– Does the response from the upload’s ajax request (use your browser’s developer tools i.e. chrome’s) give a clue of what is causing the error?

Thank you for the additional information, to answer your question

Do GD and ImageMagick conflict when jpg support is enabled on both modules?

– My understanding is that WordPress will test for a set of ImageMagick functions it needs and if they’re not present then use GD. Everything you’re running is new enough that I don’t see that as being the cause of the problem.

If you haven’t already, you can try disabling all plugins and if uploading then works start enabling them one by one to see which one is causing the conflict.

Next, I’d recommend you add the following code to the top of your wp-config.php file, try uploading a couple more times, and then examine wp-content/debug.log to see if WordPress logs any errors to that file:

define( 'WP_DEBUG', true );
define( 'WP_DEBUG_LOG', true );

Finally if that doesn’t work, you can also try to debug the upload script itself (wp-admin/async-upload.php) by adding code the following, trying an upload, and then checking wp-content/debug.log to see if any errors are being thrown:

$log = print_r( array(
	'file'        => __FILE__ . 'on line ' . __LINE__,
	'request' => $_REQUEST,
	'foo'        => $bar
), true );
error_log( $log );