Support

Akeeba Backup for Joomla!

#28232 An error has occurred: Call to a member function addScriptDeclaration() on null

Posted in ‘Akeeba Backup for Joomla! 4 & 5’
This is a public ticket

Everybody will be able to see its contents. Do not include usernames, passwords or any other sensitive information.

Environment Information

Joomla! version
n/a
PHP version
n/a
Akeeba Backup version
n/a

Latest post by on Wednesday, 06 September 2017 17:17 CDT

RichardHite
I received a notice to update Akeeba Backup to the latest version. While in the backend, I click on the update and got the following error message.

An error has occurred: Call to a member function addScriptDeclaration() on null

I can not login to the backend. Every time I click on "Return to Control Panel" it brings me back to the websites frontpage. See attachment.

I am not sure what this means. You help would be greatly appreciated.

Rick

dlb
Rick,

This issue seems to spring from a third party extension messing up Joomla's core APIs for inserting CSS to the page. The necessary steps to work around this issue are described in our news article on the matter.

In short, you will be removing the folder of the plugin which tries to make use of the (now broken) Joomla! core API and install an update to Akeeba Backup which has a workaround for this issue.

If you are interested in the details of this issue you can read the technical analysis in our news article. That's not a required read; we just include it to satisfy the curiosity of our clients and users of our software.


Dale L. Brackin
Support Specialist


us.gifEnglish: native


Please keep in mind my timezone and cultural differences when reading my replies. Thank you!


????
My time zone is EST (UTC -5) (click here to see my current time in Philadelphia, PA)

System Task
system
This ticket has been automatically closed. All tickets which have been inactive for a long time are automatically closed. If you believe that this ticket was closed in error, please contact us.

Support Information

Working hours: We are open Monday to Friday, 9am to 7pm Cyprus timezone (EET / EEST). Support is provided by the same developers writing the software, all of which live in Europe. You can still file tickets outside of our working hours, but we cannot respond to them until we're back at the office.

Support policy: We would like to kindly inform you that when using our support you have already agreed to the Support Policy which is part of our Terms of Service. Thank you for your understanding and for helping us help you!