line 181:

        @if [ ! -d $(COMMON_CONTENT)/$(BRAND) ]; then \
                echo; \
                echo "*ERROR: Brand $(BRAND) is not installed*" ; \
                echo "Either install $(BRAND) or change to a valid Brand."; \
                echo "Installed Brands:" \       <---- ERROR
                echo "`ls $(COMMON_CONTENT)`"; \
                exit 1; \
        fi

  the line above needs a semi-colon.