From 2026.q1.2-lts to 2026.Q3.1 - Control Panel ---> OBJECT ---> Objects Definitions page is empty, completely blank

Development Upgrades
1

I just migrated a DXP server from 2026.q1.2-lts to Liferay Digital Experience Platform 2026.Q3.1 (August 22, 2026) without errors.

Logging in as Administrator, the contents of Control Panel —> OBJECT —> Objects is empty, completely blank. Please see the screenshot below.

Using F12 key there are the below errors:

TypeError: can't access property "length", F.items is undefined
    Lu ViewObjectDefinitions.tsx:321
    React 10
react-dom.production.min.js:189:30
Uncaught TypeError: can't access property "length", F.items is undefined
    Lu ViewObjectDefinitions.tsx:321
    React 10
ViewObjectDefinitions.tsx:321:6

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It seems that the backend does not provide the list of Object definitions to the React frontend.

Note that I reindexed already the remote ElasticSearch instance.

Thank you in advance for any help.

objects-definition-empty-page
objects-definition-empty-page1403×250 5.74 KB

Have you done a reindex of ElasticSearch ?

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3 Answers

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2

Hi @icarrara ,

You mentioned you tried reindexing already, have you cleared the OSGI cache? Sometimes stale osgi cache from pre-upgrade can cause weird errors.

I would:

  • Stop the Liferay DXP server.

  • Remove the following directories to force OSGi state to clear:

    • $LIFERAY_HOME/osgi/state

    • $LIFERAY_HOME/work

    • $LIFERAY_HOME/tomcat/temp & $LIFERAY_HOME/tomcat/work

If that doesn’t work, I’d also check to see if there are any elastic search (exceptions, missing plugins, etc…) in the Liferay error logs when you access the object page.

3

Hi, and thanks for your comments.

Every DXP 2026.q1.2-lts server I update to 2026.q3.1 has the same issue.

When I go to “Control Panel —> Objects,” I get a blank page that produces the errors shown in this screenshot - Of course I reindexed and cleaned the various temp folders:

DXP-error
DXP-error866×288 58.7 KB

Hello, The clue is right there, status 400. Open up your network tab in the browser and check the request and response for that call /o/object-admin/v1.0. The response might have the actual error

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4

SOLVED

I did the upgrades from Liferay Portal from 7.4.3.132-ga132 to DXP 2026.q1.2-lts to 2026.Q3.1 without any database upgrade errors.

I discovered that in some rows of the “ObjectField” table, the “readOnly” field contained the value “1” instead of “true,” which is what the code expects.

The code expects to read an ENUM; this caused an error that resulted in the contents of Control Panel —> OBJECT —> Objects appearing empty—completely blank.

I used the following SQL code and the problem is resolved:

– Converte ‘1’ in ‘true’
UPDATE ObjectField
SET readOnly = ‘true’
WHERE readOnly = ‘1’;

-- Converte ‘0’ in ‘false’
UPDATE ObjectField
SET readOnly = ‘false’
WHERE readOnly = ‘0’;

Thanks to everyone who contributed to this issue.