Issue with BungeeCord could i have help?

When I start the program (on windows) it says this
Exception in thread "main" java.lang.IllegalStateException: Cannot use BungeeCord in directory with ! in path.
at com.google.common.base.Preconditions.checkState(Preconditions.java:173)
at net.md_5.bungee.BungeeCord.<init>(BungeeCord.java:180)
at net.md_5.bungee.BungeeCordLauncher.main(BungeeCordLauncher.java:52)
at net.md_5.bungee.Bootstrap.main(Bootstrap.java:15)
Then it stops, Could i please have help here?