Title: mkdir error message from Comet Cache
Last modified: November 5, 2016

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# mkdir error message from Comet Cache

 *  Resolved [Nathan Adams](https://wordpress.org/support/users/nathan-adams/)
 * (@nathan-adams)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/mkdir-error-message-from-comet-cache/)
 * We’re getting an error message coming up on quite a number of our sites, all 
   running up to date:
 * Warning: mkdir(): File exists in *****/wp-content/plugins/comet-cache/src/includes/
   traits/Plugin/InstallUtils.php on line 361
 * It appears that it’s not a constant thing, and that the error message itself 
   was cached. Logging in and clearing the cache cleared it for now.
 * I do run a security plugin that locks down a lot file writing permissions (iThemes
   Security), could that be causing a conflict?

Viewing 3 replies - 1 through 3 (of 3 total)

 *  [Raam Dev](https://wordpress.org/support/users/raamdev/)
 * (@raamdev)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/mkdir-error-message-from-comet-cache/#post-8407575)
 * [@nathan-adams](https://wordpress.org/support/users/nathan-adams/) Which version
   of Comet Cache are you running? We implemented a fix for that issue in the latest
   release (v160917); see [this GitHub issue](https://github.com/websharks/comet-cache/issues/786).
 * > the error message itself was cached.
 * Hmm, that seems unlikely. Did you actually inspect the cache file itself to see
   if that error message appeared in the cache file?
 * > I do run a security plugin that locks down a lot file writing permissions (
   > iThemes Security), could that be causing a conflict?
 * If you’re already running the latest version of Comet Cache (v160917), then I
   would suspect iThemes Security, yes. We’ve heard reports of all sorts of strange
   issues caused by iThemes Security, across several of our plugins, not just Comet
   Cache. In general, we recommend [Wordfence](https://wordpress.org/plugins/wordfence/),
   as that seems to be more compatible with other plugins.
 *  Thread Starter [Nathan Adams](https://wordpress.org/support/users/nathan-adams/)
 * (@nathan-adams)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/mkdir-error-message-from-comet-cache/#post-8437684)
 * Hi Raam,
 * I’m running 160917 on all of our sites.
 * The error has reappeared on one of our sites, and the error is definitely being
   cached. I’ve opened up wp-content/cache/comet-cache/cache/http/site-name/index.
   html and it’s there on the second line.
 * I’ve been running both iThemes Security and Comet Cache for quite some time now,
   and it’s only been recently that this issue has come up.
 *  [Raam Dev](https://wordpress.org/support/users/raamdev/)
 * (@raamdev)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/mkdir-error-message-from-comet-cache/#post-8446523)
 * [@nathan-adams](https://wordpress.org/support/users/nathan-adams/) In that case
   it sounds like iThemes Security might be causing this problem. Comet Cache cleans
   up things on its own and recreates things all the time in the cache directory,
   and if iThemes Security is somehow preventing the deletion of a directory that
   Comet Cache is trying to clean up and then recreate, you could see errors like
   that.
 * If possible, can you exclude the `wp-content/cache/` directory from iThemes Security
   altogether?

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘mkdir error message from Comet Cache’ is closed to new replies.

 * ![](https://ps.w.org/comet-cache/assets/icon-256x256.png?rev=1348602)
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 * 3 replies
 * 2 participants
 * Last reply from: [Raam Dev](https://wordpress.org/support/users/raamdev/)
 * Last activity: [9 years, 6 months ago](https://wordpress.org/support/topic/mkdir-error-message-from-comet-cache/#post-8446523)
 * Status: resolved