Your software
My Mautic version is: 4.0.1
My PHP version is: 7.4
My Database type and version is: MySQL
Your problem
My problem is:
I’ve just upgraded to Mautic v4 and have discovered that the custom email templates I built are no longer available for selection when creating an email. I noticed the ones that are available are built using mjml, so I downloaded one (Brienz), customised it to meet our branding requirements and am now finding that I’m unable to import it. I’m getting the error message:
The theme you tried to install is missing the following required files and thus could not be installed: html/email.html.twig
I compressed everything into a zipped folder before uploading and I know it includes everything the new template style needs because all the files from the original Mautic template are there.
Any help would be much appreciated.