I've been trying to start up a forge server unsuccessfully. I'm using a Mac, and I've watched countless videos and read tutorials and followed their instructions, but forge doesn't seem to work. 
 
	Strangely enough, the normal Minecraft server file works fine. But if I double-click the forge-universal.jar file nothing happens for ~10 seconds, then I get a message saying "The Java Jar File could not be launched. Check the console for errors."
 
	I checked the console running the filter "jar", and every time I ran the forge file I received a notification in the console at the exactly when the error message popped up on my screen, roughly 10 seconds after I opened the file. The console notification:
 
	"17:07:54.006305 -0700    Jar Launcher    LSExceptions shared instance invalidated for timeout."
 
	I currently have no mods installed.
 
	There is no log to upload!
 
	Thanks for your time,
 
	Adam