Fixing Invalid JSX Error Due to Missing Closing Tag

The error occurs when a JSX element is not properly closed. Here’s how to identify and fix this issue:

Common Causes

1. Self-closing tags not properly closed:

   <img src="image.jpg">  // Error: missing slash

2. Regular elements without closing tag:

   <div>Content here  // Error: missing closing div

3. Nested elements where one is not closed:

   <div>
     <p>Paragraph text
   </div>  // Error: p tag not closed

How to Fix

1. For self-closing tags (like img, input, br), add a slash:

   <img src="image.jpg" />
   <input type="text" />

2. For regular elements, ensure closing tag matches opening tag:

   <div>Content here</div>

3. For nested elements, close inner tags first:

   <div>
     <p>Paragraph text</p>
   </div>

Tools to Help

• Most code editors/IDEs will highlight unclosed tags
• ESLint with React plugins can catch these errors
• React’s error messages usually point to the exact location

Example Fix

Before (error):

function Component() {
  return (
    <div>
      <h1>Title
      <p>Paragraph content</p>
    </div>
  );
}

After (fixed):

function Component() {
  return (
    <div>
      <h1>Title</h1>
      <p>Paragraph content</p>
    </div>
  );
}

Remember that all JSX tags must be properly closed, either with a closing tag or as a self-closing tag.