doing "yarn add flag-icons" and changing abp.resourcemapping.js to the following and running abp install-libs fixes it but why is this needed?
module.exports = { aliases: { "@node_modules": "./node_modules", "@libs": "./wwwroot/libs" }, clean: [ "@libs", "!@libs/**/foo.txt" ], mappings: { "@node_modules/flag-icon-css/css/*.min.css": "@libs/flag-icon-css/css/", } };
