通过更新到最新的anddorid SDK和ADT，`AndEngine`示例没有在Eclipse上运行

Question

It was working fine but when i updated my eclipse to latest ADT and SDK it gave me this error.

12-15 14:58:07.501: E/AndroidRuntime(639): java.lang.NoClassDefFoundError: org.andengine.AndEngine

If any one faced this before then please help me, because of this my AndEngine projects are also giving me the same error.

Thanks.

Answer 1

I have solved this issue by following these steps.

First I created new Library called AndEngineLibs and add all AndEngine supporting libraries to it.

Then in the project properties->java build path->Order and Export is checked the AndEngineLibs

like shown. I don't know it is related or not but it worked for me :)

Answer 2

There are only three reasons you will ever get this error:

1. The class genuinely doesn't exist. If you are using code from an official example and getting this, make sure you have the latest build of the library
2. You have not added the jar to your build path. To fix this, right click on the jar in Eclipse, and do Build Path ► Add to Build Path.
3. Your jar is not in the /libs folder. This happens when you have added the jar to the build path, but newer versions of ADT need it to be in /libs . Put it there and re-add it to the build path.

Mostly, such errors occur because newer versions of the ADT require all external jars to be in the libs folder.