Thread: Jar Executable File Not Working

Hello! I recently finished a program, and I want to make it into a jar executable file, but it always comes up with this message whenever I try to run the jar file that gets created:

Failed to load Main-Class manifest attribute from C:\Users\Computer\Documents\JCreator LE\MyProjects\Madlibs\classes\Madlibs.jar

This is what I have for the "Arguments" part of the "Create Jar File" tool:

cvf $[PrjName].jar manifest.txt *.class

This is what I have in the manifest file:

Main-Class: Project


There is a new line after that, and the class is indeed named "Project." I'm really not sure why it can't load it. Can anyone help? Thanks in advance!

Set the application's entry point: Setting an Application's Entry Point (The Java™ Tutorials > Deployment > Packaging Programs in JAR Files)

Thanks, but the main problem is that I've done it like this before, and it worked. For some reason, it refuses to work even though I specified the main class. Also, how do you make a manifest.mf file?

This is the error I keep getting:

Failed to load Main-Class manifest attribute from C:\Users\Computer\Documents\JCreator LE\MyProjects\Madlibs\classes\Madlibs.jar

The thing is, I actually did specify the class in the manifest file.