title: TypeError: m.easing[this.easing] is not a function error
body: <p>I am trying to create anchor link scroll and also tool tip display with bootstrap </p>
  
  <pre><code>$(window).scroll(function(){
      if ($(window).scrollTop() &gt;= 100) {
         $('#header').addClass('fixed');
      }
      else {
         $('#header').removeClass('fixed').fadeOut("slow", 100);
       }
              $('[data-toggle="tooltip"]').tooltip();  
  });
  
  
  $(function() {
      $('a.page-scroll').bind('click', function(event) {
          var $anchor = $(this);
          $('html, body').stop().animate({
              scrollTop: $($anchor.attr('href')).offset().top
          }, 1500, 'easeInOutExpo');
          event.preventDefault();
      });
  });
  
  $(function() {
      $('a.scroll').bind('click', function(event) {
          var $anchor = $(this);
          $('html, body').stop().animate({
              scrollTop: $($anchor.attr('href')).offset().top
          }, 1500, 'easeInOutExpo');
          event.preventDefault();
      });
  });
  </code></pre>
  
  <p>but i am getting this error in the console 
  TypeError: m.easing[this.easing] is not a function</p>
  
  <p><a href="https://i.stack.imgur.com/TI9nF.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/TI9nF.png" alt="enter image description here"></a>
  demo link
  <a href="http://itracktraining.com/bb2/index.html" rel="nofollow noreferrer">http://itracktraining.com/bb2/index.html</a></p>