change the part in the .bat where it says craftbukkit-0.0.1-snapshot.jar to craftbukkit.jar, and go into server files and change craftbukkit.-0.0.1-snapshot.jar to craftbukkit.jar
Make sure your start batch and your craftbukkit jar file are in the same folder. Also, be sure that your craftbukkit jar filename is the same as specified in the start batch.
change craftbukkit.-0.0.1-snapshot.jar to craftbukkit (the same problem happened to me and this worked)
It the file explorer, press your alt button. Select Tools Select Folder Options Select the view tab Uncheck Hide extensions for known file types. Take a look at your craftbukkit.jar and you will notice that it is really named craftbukkit.jar.jar. Rename the file to craftbukkit.jar.