Sir i am not able to run my lesson number 98 please suggest me what to do

Tell us what’s happening:

Your code so far

<script>
  $(document).ready(function() {
  $("button").addClass("animated")
   $(".btn").addclass("shake")
   $("#target1").addclass("animated shake btn-primary")
  });
</script>

<!-- Only change code above this line.
-->

<div class="container-fluid">
  <h3 class="text-primary text-center">jQuery Playground</h3>
  <div class="row">
    <div class="col-xs-6">
      <h4>#left-well</h4>
      <div class="well" id="left-well">
        <button class="btn btn-default target" id="target1">#target1</button>
        <button class="btn btn-default target" id="target2">#target2</button>
        <button class="btn btn-default target" id="target3">#target3</button>
      </div>
    </div>
    <div class="col-xs-6">
      <h4>#right-well</h4>
      <div class="well" id="right-well">
        <button class="btn btn-default target" id="target4">#target4</button>
        <button class="btn btn-default target" id="target5">#target5</button>
        <button class="btn btn-default target" id="target6">#target6</button>
      </div>
    </div>
  </div>
</div>

Your browser information:

Your Browser User Agent is: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:55.0) Gecko/20100101 Firefox/55.0.

Link to the challenge:
https://www.freecodecamp.org/challenges/target-the-same-element-with-multiple-jquery-selectors

You have some typo. addclass should be addClass (upper case C).

Then you should only add one class per addClass call (you were adding three on the last one).

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