Unable To Access Jarfile Minecraft. It is used by most Java class files to combine all the related. Having said that, "cannot access jarfile" means the jar file as you've typed it.
No idea what to do at this point. A JAR is a package file format. It unpacks but before it installs it has an error message from the Java Virtual Machine Launcher that says: "Error: Unable to access jarfile install.jar".
I also never use a Gb reference in the code, I always use Mb, instead of dropping in a pause specify no Gui.
Unable to access bla bla., this was on Mac OS though.
Keep in mind it needs to be named craftbukkit.jar. This is what appears whenever I try to launch my forger server with the start.bat file. This will display all files in the current folder.