Undefined property: stdClass::$parent

[dtdesign]

lessc.inc.php (2056): Undefined property: stdClass::$parent

This issue is caused by a superflous closing curled bracket, in that case $this->env has no parent property.

I've fixed this issue by appending an additional check to properly throw an exception rather than raising a PHP error.

old: if (!is_null($this->env->parent)) new: if (!property_exists($this->env, 'parent') || !is_null($this->env->parent))

[mparker17]

This fix appears to work for me!

I'm using this library via the LESS Drupal module; so my steps to reproduce are:

1. Click the Flush LESS Files button at admin/config/development/less
2. Load a page.
3. Check the log messages at admin/reports/dblog.

[garciajoem4]

You can also change new stdclass; to new \stdclass();