Question

Netbeans cannot find main Class

Asked by: guyneo

Hi Experts
I have a project in Netbeans 6.5. Which works great. I created a copy of this and renamed.
On a different computer, I installed the latest Java 1.6 and Latest netbeans 6.7.1.
Everything compiles and builds ok but When I run it through netbeans. It says Main Class not found. IF I create a new project in the new versions of Netbeans, it runs ok.
Any clue to why this is happening?
thanks

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Asked On
2009-08-20 at 13:27:38ID24669547
Tags

Netbeans Java

Topics

NetBeans IDE

,

Java Programming Language

Participating Experts
2
Points
500
Comments
5

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Answers

 

by: CEHJPosted on 2009-08-20 at 13:29:21ID: 25146820

Make sure you've copied every single source over and then rebuild the project

 

by: guyneoPosted on 2009-08-20 at 13:40:05ID: 25146926

How do I ensure that. I copied over the whole project folder. It should not compile if its missing some source code right? I am confused.
Here another thing I have found. I use a JFrame as beginning Main class. If I rightclick and run the file, everything starts as it should and works fine without a hitch. But still it would not run through editor nor the jar file

 

by: CEHJPosted on 2009-08-20 at 13:46:02ID: 25146971

Yes you're right - it wouldn't compile. Running in certain ways won't work. What *should* work is if you use

ant run

 

by: objectsPosted on 2009-08-20 at 17:25:32ID: 25148214

check your run configuration in the new project

 

by: guyneoPosted on 2009-08-24 at 12:30:50ID: 25171571

Thanks objects. That solved my problem for now.  
 I like to know the way of the expert as to how to copy a netbeans project properly. I will post it as a seperate question though to learn the expert way..
For the sake of newbie or people in a hurry. HEre is how to check Run Configuration.
Right click on the project, select set Configuration and select customize.  
The Class you want to intiate when you begin should be listed as Main Class. IF not press browse and You will see the same window when you try to run the project in the IDE the very first time.
Select the appropriate class.

20120131-EE-VQP-002

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