Fixing Error “[unknown object].fireEvent()”

This error can happen sometimes, so we will learn how to fix it.

Eric Cavalcanti

Eric has worked with Magento for 10+ years and has implemented thousands of Magento stores. He has a vast experience with Magento and enterprise infrastructure.

More posts by Eric Cavalcanti.

29 Mar 2018 • 1 min read

Many people have already encountered this error in Magento when opening a client's registry or creating an order by admin. This is the error:

error: error in [unknown object].fireEvent(): 
event name: address_country_changed 
error message: zipElement.up(...).down(...) is undefined

This is how we can solve this:

Open file: app/design/adminhtml/default/default/template/directory/js/optional_zip_countries.phtml
Search for function setPostcodeOptional(zipElement, country)

Find the line below:

zipElement.up(1).down('label > span.required').hide();

Replace for the code below:

var zipElementLabel = zipElement.up(1).down('label > span.required');
if (zipElementLabel)
    zipElementLabel.hide();

In the same file find the line below:

zipElement.up(1).down('label > span.required').show();

And replace for the following code:

var zipElementLabel = zipElement.up(1).down('label > span.required');
if (zipElementLabel)
    zipElementLabel.show();

Save the file, refresh cache and you will see this error is gone.

Source: http://premius.net/blog/php/116-fixing-magento-error-error-in-unknown-object-fireevent.html

Eric Cavalcanti