title: The operation < cannot accept the arguments: , [*empty-string*], [100]
body: <p>I'm currently experimenting with App Inventor but am having trouble with my code. It the text box in my app, I want to have the ability to type a number and work out if its going to be more or less than 100 but I am getting the following message after entering any number in the text box while running the app:</p>
  
  <p>"The operation &lt; cannot accept the arguments: , [<em>empty-string</em>], [100]"  </p>
  
  <p>Any suggestions anyone? Thanks a heap in advance!</p>
  
  <p><a href="https://i.stack.imgur.com/2T3fd.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/2T3fd.png" alt="enter image description here"></a></p>
  
  <p><a href="https://i.stack.imgur.com/LpglG.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/LpglG.png" alt="enter image description here"></a></p>