How do I fix the 'error parsing uri scheme must be mongodb or mongodb srv' error?

To fix this, carefully examine your MongoDB connection string. Ensure it starts with either `mongodb://` or `mongodb+srv://`. Double-check for typos in the scheme. Also, verify that the host, port, and database name (if specified) are correctly formatted and present in the connection string. For example: `mongodb://localhost:27017/mydatabase` or `mongodb+srv://username:password@cluster.example.com/mydatabase`.