I am running a Magento 2.3.6 system and I built my own theme which inherits from Magento/blank. Since I don't need the Luma theme, I want to properly get rid of it. I followed the instructions from magento dev and tried to remove the theme via ssh console:
php bin/magento theme:uninstall --backup-code frontend/Magento/luma
However, I can't because of this error:
frontend/Magento/luma is not an installed Composer package
This is very confusing because on my cloned stage server it worked smoothly and I did not change any composer packages or manually edits.
So I checked all my files and tried to verify the frontend/Magento/luma location. I can see from multiple commands, that frontend/Magento/luma is definitely available and shown.
I also checked the folder at
and all the necessary files like
theme.xml are there.
What am I missing? The theme is obviously installed and all the files are there. I was expecting some dependency issues but not this.