Why PhpStorm inspection says `Exception` is undefined? <p><code>PhpStorm</code> doesn't recognize <code>Exception</code> from some reason. The code executes fine, but I cannot "go to" code (which should send me to <code>Core_c.php</code>):</p> <p><img src="https://i.stack.imgur.com/JkxXd.png" alt="enter image description here"></p>