jQuery Validation Plugin and IE8: '0' is null or not an object

jQuery Validation Plugin and IE8: '0' is null or not an object

i've been using jQuery Validation Plugin since about 2.5 years ago with various projects in Lotus Domino and Microsoft .Net. usually my needs are simple, consisting mostly of using "required". but also i've created several of my own methods and i especially like using "remote" to avoid postbacks.

now i'm working on a new project and Validation works find on My computer (windows 7 and ie 8). but for my co-worker and my boss (also windows 7 and ie 8), Validation gives a javascript error and submits the form with invalid data:
       '0' is null or not an object
      jquery.validate.js
      line 933, char 4
or
       Script error
      jquery.validate.js
      line 0, char 0

i'm using the latest stable versions of jQuery (1.11.1), jQuery UI (1.10.4), and jQuery Validation (1.12.0).

i've searched the web and tried various "solutions" but none has worked. i've included my code below and i'd really appreciate any help here :)

many thanks, robert




  1. <script type="text/javascript" src="/recursos/imagenes.nsf/jquery/validate/1.12.0/jquery.validate.js?OpenFileResource"></script>
  2. <script type="text/javascript" src="/recursos/imagenes.nsf/jquery/validate/1.12.0/additional-methods.js?OpenFileResource"></script>

  3. $( 'form:first' ).validate( {
  4. submitHandler: function( form ) {
  5. $("#btnSaveLN").click( );
  6. },
  7. rules: {
  8. CERTNPartner: "required",
  9. CERTNomCert: "required",
  10. CERTIDCandidato: "required",
  11. CERTFecCert: "required"
  12. },
  13. messages: {
  14. CERTNPartner: "Requerido",
  15. CERTNomCert: "Requerido",
  16. CERTIDCandidato: "Requerido",
  17. CERTFecCert:  "Requerido"
  18. }
  19. } );