Ok so I have my custom source code for my server I'm making. I need help making the phar. People say to run from source code. I tried putting src in /downloads/Pocketmine-MP/ But when I start the server it says "couldn't find any valid pocketmine installation. Press any key to continue" But when I press a key it closes I'm on Windows 7 btw. How do I run my server from source code?