Crush on empty media query

[Sergey Fetiskin]

Hello, I'm on Windows and got packer crash on this string

@media screen and (min-width: 1280px) { }

this code comes from SCSS

    @include respond-to("desktop") {
      // flex-grow: 1;
    }

where respond-to is mixin wich construct media query

The error message looks next

stream.js:94
      throw er; // Unhandled stream error in pipe.
            ^
TypeError: Cannot read property 'before' of undefined
    at C:\project\git\node_modules\css-mqpacker\lib\css-mqpacker.js:36:8
9
    at Root.Container.each (C:\project\git\node_modules\gulp-postcss\node_modules\postcss\lib\container.js:88:20)
    at _process (C:\project\git\node_modules\css-mqpacker\lib\css-mqpacker.js:27:7)
    at PostCSS.process (C:\project\git\node_modules\gulp-postcss\node_modules\postcss\lib\postcss.js:34:28)
    at DestroyableTransform.transform [as _transform] (C:\project\git\node_modules\gulp-postcss\index.js:49:26)
    at DestroyableTransform.Transform._read (C:\project\git\node_modules\gulp-postcss\node_modules\through2\node_modules\readable-stream\lib\_stream_transform.js:184:10)
    at DestroyableTransform.Transform._write (C:\project\git\node_modules\gulp-postcss\node_modules\through2\node_modules\readable-stream\lib\_stream_transform.js:172:12)
    at doWrite (C:\project\git\node_modules\gulp-postcss\node_modules\through2\node_modules\readable-stream\lib\_stream_writable.js:238:10)
    at writeOrBuffer (C:\project\git\node_modules\gulp-postcss\node_modules\through2\node_modules\readable-stream\lib\_stream_writable.js:228:5)
    at DestroyableTransform.Writable.write (C:\project\git\node_modules\gulp-postcss\node_modules\through2\node_modules\readable-stream\lib\_stream_writable.js:195:11)```

[Kyo Nagashima]

Can't reproduce. It seems you are using old version of this library. Latest version does not access before property anywhere.

[Sergey Fetiskin]

Looks like, this. I need to update