Minecraft wiki entry for Setting_up_a_Spigot_server, associated text: Now that we have BuildToolsGUI, we are ready to start. Open the BuildToolsGUI.exe file, and if you wish, change the version with the drop-down menu. Click "Run BuildTools". It will start running, and you can wait a bit until it has finished running. Note that this may take a while, depending on your connection and your computer. Once it is done running, open the BuildTools folder created in the same directory as the executable. Next, create a folder on your desktop named "Spigot". Copy the file "spigot-jar" to the Spigot folder, and rename it to spigot.jar