Version 1.13 of Validator works fine for me. When I installed 1.14 I got the bug below. Going back to 1.13 fixed it. So I have a workaround, but this may be a bug in 1.14.
The problem is that any Semantic MediaWiki {{#ask}} call results in the following message:
PHP Fatal error: Call to undefined method Parameter::setMessage() in C:\Program Files (x86)\Apache Software Foundation\Apache2.2\htdocs\mediawiki\extensions\SemanticMediaWiki\includes\SMW_QueryProcessor.php on line 512
Here is my version info:
MediaWiki 1.18.1 PHP 5.2.13 (apache2handler) MySQL 5.1.58-community Semantic Forms (Version 2.5) Semantic MediaWiki (Version 1.7.1) Semantic Result Formats (Version 1.7.1) Character Escapes (Version 0.9.1) LinkedWiki (Version 0.1.0.2222) Validator (Version 0.4.13)
Indeed, I have yet not beta-ed over to the latest SMW 1.8, but that is not yet officially released. And Validator 1.14 came out just after SMW 1.7.1.
Hope this helps, Lloyd Rutledge