我遇到了同样的问题，我只是尝试使用以下作为解决方法.到目前为止似乎有效.

I had the same problem and I just tried using the following as a workaround. Seems to work so far.

{% stylesheets
    output='assets/fonts/glyphicons-halflings-regular.ttf'
    'bundles/bootstrap/fonts/glyphicons-halflings-regular.ttf'
%}{% endstylesheets %}

注意任何输出的省略，这意味着模板上没有显示任何内容.当我运行 assetic:dump 时，文件被复制到所需的位置，并且 css 按预期包含工作.

Notice the omission of any output which means nothing shows up on the template. When I run assetic:dump the files are copied over to the desired location and the css includes work as expected.