Desktop app errors

The errors on this page can occur when running or debugging automations through the axiom.ai desktop application.

Port 3333 in use

Error: Port 3333 in use.

Problem: The desktop app uses port 3333 to communicate with the Chrome extension. If another application is already bound to that port, or if a second instance of the desktop app is running, the app can't start.

Common causes:

• Another desktop application is using port 3333.
• A second instance of the axiom.ai desktop app is already running.
• A previous axiom.ai process didn't shut down cleanly and is still holding the port.
• A firewall, antivirus, or system-level process is blocking the port.

Fix: Work through these in order:

1. Quit and reopen the axiom.ai desktop app.
2. Check whether a second instance of the desktop app is running and quit it.
3. If the issue persists, restart your computer to release any hung processes.

If the error continues after a restart, contact support with details of any other applications you suspect may be using port 3333.

Browser could not be started

Error: Browser could not be started. This may be an incompatibility between the axiom.ai desktop application and your operating system. Please contact support@axiom.ai and let us know about the issue. This error can also occur on Mac if you have tried to load a missing or broken extension.

Problem: This error has several possible causes:

• An incompatibility between the desktop app and your operating system.
• A Set executable path setting pointing at the wrong Chrome executable.
• A Load another extension setting pointing at a missing or broken extension.
• A hanging axiom.ai process on your machine.

Fix: Work through these in order:

1. Make sure your operating system is up to date. Older OS versions may not be compatible.
2. Verify the Chrome path. See set executable path.
3. Verify any loaded extension is installed and the path is correct. See load another extension.
4. Restart your computer to clear any hanging processes.