NoClassDefFoundError - but class file is in that directory!

I am running a program that I can compile. but when I try to run it I get the NoClassDefFoundError: "myclass"

The class that it compiles does show up in the same directory that I run my compiler in but I still get the error.

What should I try to do?

mmmm

some code please

Of course. Another note, is that when I compile it, I am using javac -classpath "/location/of/my/jar/file.jar" makeVisible.java, because the class contains the method is inside of file.jar


public class makeVisible
{
public static void main (String [] args) throws Exception
{
DirectIO dio = new DirectIO("filename", "/file/directory", "fileid", "/");
dio.makeVisible();
System.out.println("File is visible.");
}
}

Maybe the program is not finding the correct class

you can extract the directory that is inside the jar archive, put it where your program is, import the directory so you can use the classes you want.

if this works maybe the parameters in the javac are wrong.