Jar File

I am trying to run a java program from a jar file but I keep recieving an error:

Code:

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[B]Failed to load Main-Class manifest attribute from

    C:\ ... .jar

[/B]

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Any ideas how i can fix ths?

Thanks

The command to run a jar is like this:

Code:

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java -jar myJar.jar

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What are you building your jar with?

I am trying this software:

http: // code.google.com/p/scenemonitor/

Unfortunately the method you proposed doesnt work and i keep getting the same error.