First reported in #279, also noticed in #277. I rebuilt 9.0 branch on Travis, and it is now failing in the same way: https://travis-ci.org/OCA/website/builds/167816895 ``` 2016-11-15 17:32:13,517 5314 ERROR openerp_test openerp.addons.base.ir.ir_qweb: Could not execute command 'sass' ```