Is there a way to prevent or mitigate 'error command failed with exit code 1' errors when running 'yarn start'?

While it's difficult to completely eliminate all potential causes, you can mitigate these errors through thorough testing, robust error handling in your code, and careful dependency management. Implement unit tests and integration tests to catch errors early in the development process. Use try-catch blocks to handle potential exceptions in your code. Regularly update your dependencies to benefit from bug fixes and security patches. Use a linter and code formatter to enforce coding standards and prevent common errors. Consider using a process manager like PM2 to automatically restart your application if it crashes.