Trying to access array offset on value of type bool at /var/www/nextcloud/apps/dav/lib/CalDAV/CalDavBackend.php#1323

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Nextcloud version (eg, 18.0.2):
Operating system and version (eg, Ubuntu 20.04): ubuntu server 18.04.4
Apache or nginx version (eg, Apache 2.4.25): NGinx 1.17.10
PHP version (eg, 7.1): 7.4.5

The issue you are facing: Trying to access array offset on value of type bool at /var/www/nextcloud/apps/dav/lib/CalDAV/CalDavBackend.php#1323

Is this the first time you’ve seen this error? (Y/N): yes since updating php7.3-fpm to php7.4-fpm

Steps to replicate it:

  1. use Nextcloud 18.x
  2. make changes to nginx.conf (using the socket of php7.4 instead of 7.3)
  3. change systemwide prefered php version from php7.3-fpm to php7.4-fpm by using following command: sudo update-alternatives --config php
  4. reboot nextcloud server
  5. check logfiles for errors

The output of your Nextcloud log in Admin > Logging:

Trying to access array offset on value of type bool at /var/www/nextcloud/apps/dav/lib/CalDAV/CalDavBackend.php#1323
1 Like

This error was reported to the bug tracker, please follow the discussion there:


OK thanks for the link. I will watch out for solution on github.