My connection string looks correct but I am still getting the parsing error. What else could be the issue?

Double-check for any typos in your connection string, especially the 'mongodb' prefix and any special characters like '@' or '?'. Also, confirm you are using the correct version of your MongoDB driver or client library. Some older versions may have different requirements or stricter parsing rules. Finally, if using environment variables, confirm they are loaded and available within your application's execution context. Examine any logging messages that precede the error to understand the specific function/line where the connection attempt fails, which could indicate how your program uses the connection string.