Help having trouble creating a jar file

I managed to create the jar file but when I try to run it I get the message "Could not find the main class.Program will exit". Here are the comands i used from dos, with the results.
C:\Documents and Settings\Levybee\My Documents\Greenwich_University\PROJECT\Tac_
3D>echo Main-Class: Tac3D >manifest.txt
C:\Documents and Settings\Levybee\My Documents\Greenwich_University\PROJECT\Tac_
3D>jar -cvmf manifest.txt Tac3D.jar *.class redball.png redball2.png tac3d.png G
ameOver.png
added manifest
adding: Board.class(in = 8497) (out= 4304)(deflated 49%)
adding: highScores.class(in = 3214) (out= 1864)(deflated 42%)
adding: highScores2.class(in = 2869) (out= 1674)(deflated 41%)
adding: PickDragBehavior.class(in = 3931) (out= 2030)(deflated 48%)
adding: Positions.class(in = 4032) (out= 2181)(deflated 45%)
adding: Scor.class(in = 1645) (out= 1010)(deflated 38%)
adding: Scores.class(in = 1384) (out= 866)(deflated 37%)
adding: SplashScreen.class(in = 1649) (out= 1015)(deflated 38%)
adding: sScreen.class(in = 1640) (out= 1013)(deflated 38%)
adding: StartMenu.class(in = 2817) (out= 1619)(deflated 42%)
adding: Tac3D.class(in = 4606) (out= 2449)(deflated 46%)
adding: viewhighScores.class(in = 2078) (out= 1235)(deflated 40%)
adding: ViewScores.class(in = 2646) (out= 1531)(deflated 42%)
adding: Wrap3D.class(in = 4665) (out= 2437)(deflated 47%)
adding: redball.png(in = 746) (out= 751)(deflated 0%)
adding: redball2.png(in = 689) (out= 694)(deflated 0%)
adding: tac3d.png(in = 5764) (out= 5747)(deflated 0%)
adding: GameOver.png(in = 3419) (out= 3406)(deflated 0%)help anybody, I got to demostrate it in two days

You MUST have a line break after the Main-Class part of your manifest.

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Adeyi wrote:
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