How to Fix: OpenSSL error when building application.

Brief cause explanation: OpenSSL errors often occur when the OpenSSL library is not properly installed or configured on your system. This can be due to various reasons such as outdated versions, missing dependencies, or conflicting libraries.

🛠️ Step-by-Step Verified Fix:

1. Step 1: Update OpenSSL: Open a terminal and run the command `sudo apt-get update && sudo apt-get install -y libssl-dev` (for Ubuntu-based systems) or `brew install openssl` (for macOS) to ensure you have the latest version of OpenSSL installed.
2. Step 2: Verify Dependencies: Check if all required dependencies are installed by running `sudo apt-get install -y build-essential && sudo apt-get install -y libcurl4-openssl-dev` (for Ubuntu-based systems) or `brew link openssl` (for macOS).
3. Step 3: Rebuild the Application: After updating OpenSSL and verifying dependencies, rebuild your application using the correct flags to include OpenSSL libraries. For example, if you're using CMake, add `-DOPENSSL_INCLUDE_DIR=/usr/include/openssl -DOPENSSL_LIBRARIES=/usr/lib/x86_64-linux-gnu/ssl/libssl.so` to your CMakeLists.txt file.