Hi. I still have the same exception, but I did notice something I was doing wrong: the API endpoint and the key for the request to the currency API were wrong. I fixed them, but the exception is still there. I sent an email to the OpenSSL users mailing list to ask them if I did anything wrong in the root certificate stuff. Entire source code for app is on GitHub here: https://github.com/DragonOsman/currency_converter .