Form validation not working missing aui/form-validation

[Jonathan Sanchez]

I added a resource where I put 

AJS.toInit(function(){

require(['aui/form-validation']);

});

to validate the form that is on my velocity template

but is throwing me an error  missing aui/form-validation

[Łukasz Modzelewski _Transition Technologies PSC_]

It's been a while, and most probably it was already fixed, probably that resource was not imported, as it was a solution to similar case: https://community.atlassian.com/t5/Answers-Developer-Questions/AUI-Form-Validation-in-Jira-PostFunction-Plugin/qaq-p/559381