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NoClassDefFoundError - Eclipe and Android

Answer 1

+3 A:

By adding the external jar into your build path just adds the jar to your package, but it will not be available during runtime.

In order for the jar to be available at runtime, you need to:

Put the jar under your assets folder
Include this copy of the jar in your build path
Go to the export tab on the same popup window
Check the box against the newly added jar

Anthony Forloney 2010-02-11 21:55:58

ScoreNinjaAdapter is someone else's code, but I would be very surprised if it contained such an error as it is in common usage. The error happens at a point in my own code.

Tom R 2010-02-11 21:58:53

Can you post your own code where the error happens?

Anthony Forloney 2010-02-11 22:01:06

The error literally just happens here: sna = new ScoreNinjaAdapter(this, SN_APP_ID, SN_APP_KEY);

Tom R 2010-02-11 22:03:04

Do you need an `import` statement for external jar files? I have never used them.

Anthony Forloney 2010-02-11 22:09:27

Updated my answer, hope this helps.

Anthony Forloney 2010-02-11 22:21:03

Thanks for all your help, but I'm still not having any luck with this.

Tom R 2010-02-11 22:29:56

Have you tried with the removing the .jar file from the `assests` folder approach?

Anthony Forloney 2010-02-11 22:32:50

Yeah. In the end, I got fed up with all this and just downloaded the source and copied the source files into my project. Not the nicest solution, but it works now. Thanks for all your help.

Tom R 2010-02-11 22:34:36

I wish we could have found a more permanent solution, good luck.

Anthony Forloney 2010-02-11 22:36:52

@Anthony so I can't add another project to mine? I mean, because I can't add the whole project to the assets folder..

Tom Brito 2010-07-16 19:13:53

Answer 2

A:

I'm not sure if this is related, or if you're even still looking for an answer, but I came across this thread while trying to research the same error (but possibly for different reasons).

I couldn't find any solutions online, but an answer on a similar thread got me thinking and realized I probably just needed to rebuild (or clean) the project.

In Eclipse, go to Project => Clean. Select your project and Eclipse seemed to fix it itself. For me this solved the problem.

Hope this helps.

Brian 2010-10-17 15:58:06

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