Title: Compilation failed: unknown property name
Last modified: November 20, 2018

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# Compilation failed: unknown property name

 *  Resolved [jmzwiv](https://wordpress.org/support/users/jmzwiv/)
 * (@jmzwiv)
 * [7 years, 5 months ago](https://wordpress.org/support/topic/compilation-failed-unknown-property-name/)
 * Hi,
 * Would you be able to advise why we get the error below on the Swift Dashboard?
   If I reset the cache and start over the dashboard works again but after a while
   the error comes back and the page doesn’t load.
 * [20-Nov-2018 13:21:48 UTC] PHP Fatal error: Uncaught InvalidArgumentException:
   RegexIterator::__construct(): Compilation failed: unknown property name after\
   P or \p at offset 4 in C:\inetpub\wwwroot\wp-content\plugins\swift-performance-
   lite\modules\cache\cache.php:1384
 * Thanks

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Plugin Contributor [Fred](https://wordpress.org/support/users/fredawd/)
 * (@fredawd)
 * [7 years, 5 months ago](https://wordpress.org/support/topic/compilation-failed-unknown-property-name/#post-10905066)
 * This is a known issue. There is an URL which contains a parenthesis, and it broke
   clear cache. It is already has been fixed, the update will release soon.
 * Thank you for reporting this!
 *  Thread Starter [jmzwiv](https://wordpress.org/support/users/jmzwiv/)
 * (@jmzwiv)
 * [7 years, 5 months ago](https://wordpress.org/support/topic/compilation-failed-unknown-property-name/#post-10906743)
 * Great to hear, otherwise very happy after switching to this caching solution.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Compilation failed: unknown property name’ is closed to new replies.

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 * 2 replies
 * 2 participants
 * Last reply from: [jmzwiv](https://wordpress.org/support/users/jmzwiv/)
 * Last activity: [7 years, 5 months ago](https://wordpress.org/support/topic/compilation-failed-unknown-property-name/#post-10906743)
 * Status: resolved