adb.exe start server failed-run manually if neccessary
<p>When I started running my app in Android, I got a message saying that "adb.exe start server failed-run manually if neccessary".</p>

<p><img src="https://i.stack.imgur.com/9nvys.jpg" alt="error1"></p>

<p>I tried many commands shown on Stack Overflow in the command prompt, but the problem is not rectified. This is the error I get,</p>

<p><img src="https://i.stack.imgur.com/rNs4R.jpg" alt="error2"></p>

<p>I even reinstalled Android Studio, but in vain. And my adb.exe is not found in the Task Manager.<br>
How can I solve this problem?</p>