my program cannot be compile

[justlynn]

Hi all~
my program has been done before im using netbeans 6.9,
before that im using netbeans 6.8.
after i format my computer and install netbeans 6.9 my program cannot be compile already, even i try to install back netbeans 6.8.
error when im compile the project :
..\nbproject\build-impl.xml:184: Must set build.dir
error whrn im run the project :
does not have a main class set.:confused:
who can help me ?? thank you

[Eranga]

Can you post the complete error message you comes with?

And the code you've try to compile.

[justlynn]

D:\CSTay-Data\TMM - Java Program\09-08-10\new\Computer\nbproject\build-impl.xml:184: Must set build.dir
BUILD FAILED (total time: 0 seconds)
this is my compile error.
I cannot make it my code here because that the code is very big and long~
before that still can work well.

[justlynn]

the error point me as below
<target depends="-pre-init,-init-private,-init-user,-init-project,-do-init" name="-init-check">
<fail unless="src.build.dir">Must set src.build.dir</fail>
<fail unless="build.dir">Must set build.dir</fail>
<fail unless="dist.dir">Must set dist.dir</fail>
<fail unless="build.classes.dir">Must set build.classes.dir</fail> <fail unless="dist.javadoc.dir">Must set dist.javadoc.dir</fail>
<fail unless="build.test.classes.dir">Must set build.test.classes.dir</fail>
<fail unless="build.test.results.dir">Must set build.test.results.dir</fail>
<fail unless="build.classes.excludes">Must set build.classes.excludes</fail>
<fail unless="dist.jar">Must set dist.jar</fail>
</target>

[Eranga]

Did you set the main class in your project?

[justlynn]

sorry can teach me how to do it? because before that i just type out the code and run~
never do other setting before

[justlynn]

hi~ i try to set main class le ~ but it was no any class in the drop down list~
how i going to choose?
>.<

Image Upload with resize

[Eranga]

Right click on the project, and click on properties. You can find an option to define the main class there.

[justlynn]

but it was no any class in the drop down list~
that's why i cannot set any class as main class