GUI not getting generated into class or source


IDEA is not generating the GUI into class files or java source and thus anytime I am trying to run any swing application it gives me NullPointerException. It started happening after I upgraded to 4.x, it used to work fine in 3.x. Has anybody faced this problem??? if yes, please help me in resolving this issue.

Windows 2000 Server/j2sdk1.4.2_02/Idea 4.5.3 build 2250

Jitendra Rana

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Hi Guys,

problem is resolved!!!

Just had to put forms_rt.jar in the libraries and Make the project before running and that fixed the problem. Its actually the "Make Project" that compiles the form into class file.

Jitendra Rana


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