来自Materialize的错误不提供https://cdnjs.cloudflare.com/ajax/libs/materialize/0.100.2/css/materialize.min.css的本地版本

Question

当我尝试运行CDN时出现此错误

external_css = ["https://cdnjs.cloudflare.com/ajax/libs/materialize/0.100.2/css/materialize.min.css"]
for css in external_css:
    app.css.append_css({"external_url": css})

external_js = ['https://cdnjs.cloudflare.com/ajax/libs/materialize/0.100.2/js/materialize.min.js']
for js in external_js:
    app.scripts.append_script({'external_url': js})