title: What is the error of this Blazor EditForm?
body: <p>I tried to follow the instruction of creating form from youtube channel like those:
  <a href="https://www.youtube.com/watch?v=zfqQ_fhmPOQ" rel="noreferrer">https://www.youtube.com/watch?v=zfqQ_fhmPOQ</a>
  or
  <a href="https://www.youtube.com/watch?v=40njRXr6eUo" rel="noreferrer">https://www.youtube.com/watch?v=40njRXr6eUo</a>
  or I even tried a very simple code like this</p>
  
  <pre><code>    &lt;EditForm Model="@author" OnValidSubmit="SaveAuthor"&gt;
              &lt;p&gt;
                  &lt;label&gt;&lt;/label&gt;
                  &lt;InputText id="FirstName" @bind-Value="author.FirstName"/&gt;
              &lt;/p&gt;
       &lt;/EditForm&gt;
  </code></pre>
  
  <p>Here is my github link for the code sample <a href="https://github.com/maxrena/BlazorServerApp.git" rel="noreferrer">https://github.com/maxrena/BlazorServerApp.git</a>
  It still returns the error like this 
  <a href="https://i.stack.imgur.com/bkLix.png" rel="noreferrer"><img src="https://i.stack.imgur.com/bkLix.png" alt=""></a>
  Please help me with it.</p>