caswimmer2011 Light Poster 33 posts since Oct 2010 Reputation Points: 0 [?] Q&As Helped to Solve: 0 [?] Skill Endorsements: 0 [?] 0 2 Years Ago Hey, I am having trouble compiling in netbeans. When I go to compile, I usually go to Run>Clean and Build Main Project (or shift F11). When it compilies, it says Copying 1 file to /Users/me/NetBeansProjects/JavaApplication11/build Nothing to copy. And when I go to run the .jar file, it doesn't open and says "The Java JAR file "JavaApplication11.jar" could not be launched." I set it as the main project and the program does have a package. Any ideas? I've never had this problem before. (I'm on a MacBook if that helps) Thanks in advance!