# PHP Warning: PHP Startup: Unable to load dynamic library ‚/usr/lib/php/20151012/apcu.so‘ – /usr/lib/php/20151012/apcu.so: cannot open shared object file: No such file or directory in Unknown on line 0

**URL:** <https://help.nextcloud.com/t/php-warning-php-startup-unable-to-load-dynamic-library-usr-lib-php-20151012-apcu-so-usr-lib-php-20151012-apcu-so-cannot-open-shared-object-file-no-such-file-or-directory-in-unknown-on-line-0/35441>\
**Category:** ℹ️ Support\
**Created:** [August 23, 2018, 9:20am UTC](https://help.nextcloud.com/t/php-warning-php-startup-unable-to-load-dynamic-library-usr-lib-php-20151012-apcu-so-usr-lib-php-20151012-apcu-so-cannot-open-shared-object-file-no-such-file-or-directory-in-unknown-on-line-0/35441 "2018-08-23T09:20:55Z")\
**Posts on this page:** 1\
**Showing post:** 7

<div class="post-metadata">

**Author:** ![iteco](https://help.nextcloud.com/user_avatar/help.nextcloud.com/iteco/32/15922_2.png) [@iteco](https://help.nextcloud.com/u/iteco)\
**Post date:** [May 10, 2019, 11:41am UTC](https://help.nextcloud.com/t/php-warning-php-startup-unable-to-load-dynamic-library-usr-lib-php-20151012-apcu-so-usr-lib-php-20151012-apcu-so-cannot-open-shared-object-file-no-such-file-or-directory-in-unknown-on-line-0/35441/7 "2019-05-10T11:41:29Z")

</div>

just linking to other [related issue](https://help.nextcloud.com/t/upgrade-question-ubuntu-16-04-to-18-04-server-upgrade/39559/2)

---

_[View the full topic](https://help.nextcloud.com/t/php-warning-php-startup-unable-to-load-dynamic-library-usr-lib-php-20151012-apcu-so-usr-lib-php-20151012-apcu-so-cannot-open-shared-object-file-no-such-file-or-directory-in-unknown-on-line-0/35441)._