Base_url as a default value in a custom Config file

I don't know why you have this error. A workaround would be to define your config like this:

PHP Code:

class MyConfig extends BaseConfig
{
    public $myTargetLink = '/path/to/link';
} 


Then when you need it use base_url() like this:

PHP Code:

$myConfig = config('MyConfig');
echo base_url($myConfig->myTargetLink);