Learn what to do when Moodle Coding error is detected. Our Moodle Support team is here to help you with your questions and concerns.

Moodle Coding Error Detected | Troubleshooting Tips

The Coding Error in Moodle is one that often pops up when the cache files are corrupted.

In this scenario, we come across the following error message:

Coding error detected, it must be fixed by a programmer: Failed to unserialise data from file. Either failed to read, or failed to write.

Our experts have put together this quick fix to help out in these situations:

1. To begin with, head to the Moodle root directory

   #cd /var/www/html/moodle
2. Then, run this command to clear the cache:

   #php admin/cli/purge_caches.php
3. Now, it is time to head to the moodledata/cache directory:

   #cd /var/moodledata/cache
4. At this point, we have to remove the cache store directory. Our experts would lo point out that we should not remove or change the core_component.php file.

   # rm -rf cachestore_file/

5. Finally, reload the Moodle Page.

If the above steps did not help, take a look at these troubleshooting tips:

• The error message will give us more details about the error. This will help us pinpoint the problem.
• If you are not running the latest version of Moodle, we have to upgrade to the latest release.
• In case we are using custom code or plugins, make sure they are compatible with your Moodle version. Else, we may have to update them.
• Next, review the server configuration to make sure it meets Moodle’s requirements. We have to check PHP settings, file permissions, etc.
• Furthermore, we can enable debugging in Moodle to for more detailed error messages. This will help us identify the root cause of the problem.

[Need assistance with a different issue? Our team is available 24/7.]

Conclusion

In brief, our Support Experts demonstrated what to do when a Moodle Coding error is detected.