Solved: “Uncaught Error: Call to a member function getPackage()” [Magento 2.3.0]

Magento 2.3.0 was released on November 28, 2018. Owing to the excellent features it offered, the Magento 2 store owners were bound to upgrade their store to the latest version!

However, some of them faced a theme error “Uncaught Error: Call to a member function getPackage()” in Magento 2.3. 0 while static content deployment. If you are one of them, you may have seen an error like this when you run the command:

php bin/magento setup:static-content:deploy -f

If that’s the case, continue reading for the solution!

Methods to solve “Uncaught Error: Call to a member function getPackage()” in Magento 2.3.0:

Method 1:

Run the below command

rm -rf pub/static/* var/view_preprocessed/pub/*
php bin/magento setup:static-content:deploy -f

Method 2:

email.css and email-inline.css are available in  your custom theme

Open that css file and replace the code:

@import url("{{base_url_path}}frontend/Magento/luma/{{locale}}/css/email-fonts.css"); 

with,

@import url("{{baseUrl}}/css/email-fonts.css");

Run the below command:

php bin/magento setup:static-content:deploy -f

With any of the above methods, you can solve this theme-related error in Magento 2.3.0

Thank you.