The “Invalid course module ID” error in Moodle typically occurs when the system cannot find a valid course module record. We’ll look into various causes and fixes for the error in this article. As part of our Server Management Service, Bobcares provides answers to all of your questions.

Overview

1. How to Fix “Invalid course module ID” error in Moodle?
2. Causes & Fixes

How to Fix “Invalid course module ID” error in Moodle?

The “Invalid course module ID” issue in Moodle usually arises when the system is unable to locate a valid course module record. The following are some common causes and fixes for this issue:

Causes & Fixes

1. Cause: This error can occur when “Legacy course files” is enabled. This feature, introduced in Moodle 1.9, allows files to be stored separately but is incompatible with the new file storage system in Moodle 2.0.

Fix: Disabling “Legacy course files” can fix the issue:

1. Initially, go to Site administration > Plugins > Repositories > Manage repositories.

2. Check “Legacy course files repository plugin” and click Save changes.

3. Then, go to Course administration > Settings.

4. Also, set “Legacy course files” to No.

2. Cause: The module might not exist in the database due to corruption or incorrect updates.

Fix:

1. If the module was present before the issue, restoring from a backup can help.

2. Also, ensure the module exists in the database by checking relevant tables and confirming it is linked correctly to the course.

3. Cause: Problems with third-party plugins, such as the custom certificate module, can cause this error if not properly setup or incompatible with other plugins or the Moodle version.

Fix:

1. Check for and set up updates in order to resolve compatibility issues.

2. Ensure the plugin is compatible with the Moodle version and other plugins.

3. If updating doesn’t help, delete and re-add the plugin to reset any setup issues.

4. Cause: Deleting a course module without properly removing it from the course structure can lead to this error.

Fix:

1. Re-add the broken module to a course section.

2. Ensure the sequence field for the module is correctly linked to the course.

5. Cause: Deleting a user can cause this error if the deletion process fails.

Fix: Click the back button and delete the user again to ensure all associated data is removed.

6. Cause: Incorrect or missing course module IDs in the database can cause this error.

Fix:

1. Check the database for the correct course module ID and ensure it matches the actual module.

2. Ensure the course module ID is correctly linked to the course in the database.

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Conclusion

These are some common causes and fixes for the “Invalid course module ID” error in Moodle. If the issue persists, our Experts are here to provide more targeted guidance.