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Whenever I try to install/uninstall CiviCRM extensions or run Cleanup Cache, I consistently receive this error:

Warning: require(/home/xxxxxxxx/public_html/wp-content/uploads/civicrm/templates_c/CachedExtLoader.8fc40bba39c0b8bd10ea54175cf9a6b3.php): failed to open stream: No such file or directory in /home/xxxxxxxx/public_html/wp-content/plugins/civicrm/civicrm/CRM/Extension/ClassLoader.php on line 70

Fatal error: require(): Failed opening required '/home/xxxxxxxx/public_html/wp-content/uploads/civicrm/templates_c/CachedExtLoader.8fc40bba39c0b8bd10ea54175cf9a6b3.php' (include_path='/home/xxxxxxxx/public_html/wp-content/uploads/civicrm/ext/org.civicoop.pdfapi/:/home/xxxxxxxx/public_html/wp-content/uploads/civicrm/ext/org.civicoop.civirules/:/home/xxxxxxxx/public_html/wp-content/uploads/civicrm/ext/org.civicrm.volunteer/:/home/xxxxxxxx/public_html/wp-content/uploads/civicrm/ext/org.civicrm.angularprofiles/:.:/home/xxxxxxxx/public_html/wp-content/plugins/civicrm/civicrm:/home/xxxxxxxx/public_html/wp-content/plugins/civicrm/civicrm/packages:/home/xxxxxxxx/public_html/wp-content/plugins/civicrm/civicrm/vendor/tecnickcom:/home/xxxxxxxx/public_html/wp-content/plugins/civicrm/civicrm/vendor/phpseclib/phpseclib/phpseclib:/home/xxxxxxxx/public_html/wp-content/plugins/civicrm/civicrm/vendor/pear/pear_exception:/home/xxxxxxxx/public_html/wp-content/plugins/civicrm/civicrm/vendor/pear/auth_sasl:/home/xxxxxxxx/public_html/wp-content in /home/xxxxxxxx/public_html/wp-content/plugins/civicrm/civicrm/CRM/Extension/ClassLoader.php on line 70

There has been a critical error on your website. Please check your site admin email inbox for instructions.

civicrm.settings.php seems fine:

global $civicrm_root;

$civicrm_root = '/home/xxxxxxxx/public_html/wp-content/plugins/civicrm/civicrm/'; if (!defined('CIVICRM_TEMPLATE_COMPILEDIR')) { define( 'CIVICRM_TEMPLATE_COMPILEDIR', '/home/xxxxxxxx/public_html/wp-content/uploads/civicrm/templates_c/');

Wordpress 5.3.2 CiviCRM 5.22.0 PHP 7.3

The email sent by the system had almost the same message:

Error Details ============= An error of type E_COMPILE_ERROR was caused in line 70 of the file /home/nkxwvwvr/public_html/staging02/wp-content/plugins/civicrm/civicrm/CRM/Extension/ClassLoader.php. Error message: require(): Failed opening required '/home/xxxxxxxx/public_html/staging02/wp-content/uploads/civicrm/templates_c/CachedExtLoader.697f143a9f2872e12a14e35583756c82.php' (include_path='.:/home/xxxxxxxx/public_html/staging02/wp-content/plugins/civicrm/civicrm:/home/xxxxxxxx/public_html/staging02/wp-content/plugins/civicrm/civicrm/packages:/home/xxxxxxxx/public_html/staging02/wp-content/plugins/civicrm/civicrm/vendor/tecnickcom:/home/xxxxxxxx/public_html/staging02/wp-content/plugins/civicrm/civicrm/vendor/phpseclib/phpseclib/phpseclib:/home/xxxxxxxx/public_html/staging02/wp-content/plugins/civicrm/civicrm/vendor/pear/pear_exception:/home/xxxxxxxx/public_html/staging02/wp-content/plugins/civicrm/civicrm/vendor/pear/auth_sasl:/home/xxxxxxxx/public_html/staging02/wp-content/plugins/civicrm/civicrm/vendor/pear/log:/home/xxxxxxxx/public_html/staging02/wp-content/plugins/civicrm/civicrm/vendor/pear/console_getopt:/home/xxxxxxxx/public_html/staging02/wp-content/plugins/civicrm/civicrm/vendor/pear/pear-core-minimal/src:/ho

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  • try reloading your php-fpm or ngnix or apache
    – Pradeep Nayak
    Commented Feb 21, 2020 at 23:19
  • The host restarted them. No difference. They say, "If the issue is still there, i would recommend having a developer look into this, as this appears to be PHP error." I even lowered PHP from 7.3 to 7.2. No difference.
    – Día
    Commented Feb 22, 2020 at 16:14
  • "There has been a critical error on your website. Please check your site admin email inbox for instructions." What does the mail say? You could try manually removing /home/xxxxxxxx/public_html/wp-content/uploads/civicrm/templates_c
    – Aidan ♦
    Commented Feb 22, 2020 at 20:22
  • The email contained pretty much the same error as I see on the screen. I just placed the error in the original post. Also, deleting templates_c doesn't help.
    – Día
    Commented Feb 23, 2020 at 19:58
  • It's happening at one webhost and not another. The only difference in setup is that the failing webhost is using EasyApache.
    – Día
    Commented Feb 26, 2020 at 23:17

2 Answers 2

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The hosting company sent me this instruction. It worked, and I'm back in business!

"You need to add this in your .htaccess file to avoid problem, it is caching related:"
php_flag opcache.enable Off

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0

I've been tearing my hair out on this one, attempting a clean CiviCRM install

Same error as above, during install. Clearly something to do with the database, as the install ran for a minute, and produced the error, but no tables were ever written to the database.

I know all requirements are met, as we already have two other running copies of CiviCRM on the same server.

My fix, for what it's worth, was to locate a copy of CiviCrm 5.28 (yeah, I had a very old backup lying around), install that, and then upgrade! Still have no idea what the cause was, but at least now I have a clean install of Civi running.

Ubuntu Server 18.04 MYSQL 5.7.35 PHP 7.4 Attempted install - CiviCRM 5.41.2 on Wordpress 5.8.1

Might help someone (might not)

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