php - Laravel 4, Basset, Less - preg_match compilation failed -

background: using ubuntu 12.04, php 5.5.1-2, , laravel 4.

when run:

php artisan basset:build 

i error

{"error":{"type":"errorexception","message":"preg_match():  compilation failed: nothing repeat @ offset 0", "file":"\/home\/ryan\/myapp6\/vendor\/jasonlewis\/basset\ /src\/basset\/filter\/filter.php","line":241}} 

my problem similar this: how make less work basset in laravel 4?

however, have tried lessphpfilter, , have node.js installed... can manually compile stylesheet node, neither work me through basset.

for example, given mytest.less:

@color:blue; body{     background-color: red;     color:@color; } 

myapp/app/config/packages/jasonlewis/basset/config.php

'collections' => array(      'mytest-css' => function($collection)     {          $collection->directory('assets/bs3/css', function($collection)         {             $collection->add('../less/mytest.less')->apply('less');                     })->apply('urirewritefilter')->setarguments(public_path());     }, ... 

when pull page in browser, background red, text still black. in chrome devtools, can see compiled css file, content still:

@color:blue;  body{     background-color: red;     color:@color; } 

what doing wrong? hint how approach tracking down appreciated - thank you!

the lessphpfilter needed, in app/config/packages/jasonlewis/basset/config.php

i need add leading slash follows:

'less' => array('lessphpfilter', function($filter) {     $filter->whenassetis('/*.less')->findmissingconstructorargs(); }), 

i hope helps else.