engine.rb in administrate-bootstrap-theme-0.1.8

- old
+ new

@@ -1,7 +1,9 @@
 # frozen_string_literal: true
 
 module AdministrateBootstrapTheme
   class Engine < ::Rails::Engine
     isolate_namespace AdministrateBootstrapTheme
+
+    config.assets.paths << File.expand_path('../../node_modules', __dir__)
   end
 end