Apex: Error 'DisjunctionsNotSupportedException' on the Apex Classes Setup Page After Creating a Dynamic List View

This article explains how to fix the Apex Classes setup page error caused by a Dynamic Apex Classes list view filter that uses an unsupported OR (disjunction) condition, and how to remove that filter when the setup page itself can no longer be opened.

Why This Happens

The Dynamic Apex Classes list view does not support filter logic that combines two criteria with OR. Once such a filter is saved, navigating to the Apex Classes setup page triggers the error and the page can no longer be accessed normally.

How to Fix It

Since the Apex Classes setup page itself is inaccessible, the filter must be removed by editing the list view directly through a URL rather than through the standard navigation.

Step 1: Find the List View ID

Query the ListView object to find the ID of the affected list view:

SELECT CreatedById, CreatedDate, DeveloperName, Id, Name, SobjectType FROM ListView WHERE CreatedDate = LAST_N_DAYS:1

This query returns list views created in the last day. Add additional filters (for example, on DeveloperName) to narrow the results if needed.

Step 2: Edit the List View Filter Directly

Navigate to the following URL, replacing listviewID with the ID found in Step 1:

/ui/list/FilterEditPage?id=listviewID

This opens the filter edit page for that specific list view without going through the Apex Classes setup page.

Step 3: Remove the Invalid Filter

On the filter edit page, remove the OR-based filter criteria causing the error, then save the list view. The Apex Classes setup page should now load normally.