[could not find or load main class package.class] Even though it is there. JARS

Newbie & Debugging Questions
#1

So I have a jar, and I use it like this:
java -jar horde.jar
And I get that error. I looked at the manifest, and verified that the main-class existed. I am using jar splicer to make fat jars. What is wrong?!

#2

it is of course not there were it should be, because you get thsi error.

you could show us the file tree and the manifest if you need further help

#3

Main Class / Manifest-path might be in the wrong subfolder.

example:
Manifest:
Main-Class: com.mygame.hordeMainClass

then the main class should be in the subfolder
/com/mygame

and the manifest of course in the META-INF folder

#4

I’m hoping you just made a mistake in the typing the file has to be compiled and would be .class
so make sure Main.class exists not .java