Error - Browser spawn failure

Learn how to fix errors related to browser spawn failures in Percy

Spawn failures usually occur on node when it is unable to spawn a child process. This can be due to permissions or environment issues in which the node process is running.

Try these solutions to resolve this error:

Solution 1:

Spawn failures can occur if you run multiple CLI instances on the same machine simultaneously. We recommend using a single Percy CLI on a machine, learn more.

Solution 2:

• For Mac, try installing Rosetta using the following command:

softwareupdate --install-rosetta

• For Windows
  • Disable any antivirus software you have installed and check if the error persists. If the error is resolved, it indicates that your antivirus is blocking Percy from spawning a new browser instance. In this case, modify your antivirus settings to allow Percy to spawn a browser.

Reference Topic

• Percy Common error messages