Openssl is not recognized as an internal or external command

Troubleshooting OpenSSL hiccups

If OpenSSL is acting up, even after you've added it to your PATH, here's what you gotta do:

Verify OpenSSL installation

• Make sure that OpenSSL feels at home - it should be correctly installed.
• Windows x86 or x64? Get the matching OpenSSL version.

Scratch the environment variables

• If you've set up the PATH variable, ensure that it's pointing to the right OpenSSL bin folder.

Favour explicit paths

• A direct path to the OpenSSL executable can bypass problems when launching commands.

Wave the printKeyHash wand

• If OpenSSL is being stubborn, switch to printKeyHash method for key hashes in your app code.

Monitor command syntax

• Is every dash and space in place? OpenSSL commands demand syntax precision.

Extra fixes and unpackings

Keystore and JDK vetting

• Confirm you've given the right directions to your keystore file and the valid alias for your app signature.
• For certain OpenSSL operations, version and location of the JDK come into play. So double-check these.

Command-line reassurances

• Wonder if the OpenSSL command has made itself at home after setup? Use the where trick in cmd.

Touch-up installation

• Check if you've invited the right guest home by confirming from the OpenSSLWiki that you have an official OpenSSL binary.
• A single typo or wrong flag can sour your OpenSSL commands. Inspect 'em thoroughly.

Bypassing OpenSSL for keys

• If you're in the business of generating a Facebook key hash, you might want to tap into hashing algorithms like MessageDigest and Signature directly in your app code.
• To make this work, ensure Facebook SDK and AppEventsLogger are up and running.

Debugging affirmation

• Echo the encrypted key hash to logs for catching the success of your command's execution.

Keeping your options open

• The beauty of open-source? Alternatives! With Git Bash from Git for Windows, you have another route to OpenSSL-equivalent tools.