Could Not Find A Pty Mac Terminal


So you’re working on your Mac, running some scripts or trying to open a terminal session, and suddenly you encounter an error message saying “Could not find a PTY”. Trust me, I’ve been there, and it can be quite frustrating. But fear not, because I’m here to help you understand what this error means and how you can fix it.

Understanding the Error

Before we jump into the solutions, let’s first understand what a PTY is. PTY stands for Pseudo Terminal, and it is a software abstraction layer that emulates a physical terminal device. In simple terms, it allows your computer to interact with terminal sessions, like when you open a terminal window and run commands.

Now, when you see the error message “Could not find a PTY,” it means that your computer is unable to locate or create a PTY for the terminal session you’re trying to open. This can happen due to various reasons, such as misconfigured settings, conflicting processes, or even a bug in the operating system.

Common Causes and Solutions

Now that we have a basic understanding of the error, let’s explore some common causes and their corresponding solutions:

1. Permissions Issue

One possible cause for the “Could not find a PTY” error is a permissions issue. Make sure that your user account has the necessary permissions to access the terminal. You can check this by going to “System Preferences” > “Security & Privacy” > “Privacy” > “Full Disk Access” and ensuring that the is included in the list of allowed applications.

2. Conflicting Processes

Another common cause of this error is conflicting processes. Sometimes, other applications or processes on your Mac may be interfering with the terminal session. To troubleshoot this, try closing any unnecessary applications or restarting your Mac to clear out any conflicting processes. You can also try opening the terminal in Safe Mode to see if the error persists.

3. Terminal Settings

Misconfigured terminal settings can also lead to the “Could not find a PTY” error. To fix this, you can try resetting the terminal settings to their default values. Open, go to “Preferences” > “Profiles,” select your preferred profile, and click on the “Default” button to reset it. You can also try creating a new profile to see if that resolves the issue.


Encountering the “Could not find a PTY” error on your Mac can be a frustrating experience, especially when you’re in the middle of important work. However, by understanding the error and trying out the solutions mentioned above, you should be able to resolve the issue and get back to using the terminal seamlessly.

Remember, troubleshooting technical issues can sometimes be a trial-and-error process, so don’t get discouraged if the first solution doesn’t work. Keep exploring different options and seeking help from online communities or Apple support if needed. With a little patience and perseverance, you’ll conquer any error that comes your way!