When I run it says Failed to open process.

[OneGuyGames]

Trying to find the AES key to Valorant but when I do i get

Searching PID 7072 ...
Failed to open process.
Done!

[mmozeiko]

Probably anti-debug or something similar prevents accessing process memory.
This tool works only when target process does not do any anti-debug/anti-cheat measures.
See #10 and #13 for similar issue.

[subsr97]

If you're on Linux, you should be running aes-finder as root.

[mmozeiko]

@subsr97 OP mentioned he's using it on Valorant. I don't think Valorant is released on Linux.

[elsamuko]

If the target process is running as 64 Bit, but aes-finder was compiled as 32 Bit, it cannot open the target process.

[Numenorean]

Run as an admin