錯誤，同時運行libgdx例如

Question

我是新來libgdx.Just試運行libgdx例子，我得到奇怪的錯誤，它說：

[2013-03-22 12:08:35 - ObjLoaderUsingLibGdx] Dx 1 error; aborting 
[2013-03-22 12:08:35 - ObjLoaderUsingLibGdx] Conversion to Dalvik format failed with error 1 
[2013-03-22 12:10:59 - ObjLoaderUsingLibGdx] Dx 
trouble processing "java/io/BufferedInputStream.class": 

Ill-advised or mistaken usage of a core class (java.* or javax.*) 
when not building a core library. 

This is often due to inadvertently including a core library file 
in your application's project, when using an IDE (such as 
Eclipse). If you are sure you're not intentionally defining a 
core class, then this is the most likely explanation of what's 
going on. 

However, you might actually be trying to define a class in a core 
namespace, the source of which you may have taken, for example, 
from a non-Android virtual machine project. This will most 
assuredly not work. At a minimum, it jeopardizes the 
compatibility of your app with future versions of the platform. 
It is also often of questionable legality. 

If you really intend to build a core library -- which is only 
appropriate as part of creating a full virtual machine 
distribution, as opposed to compiling an application -- then use 
the "--core-library" option to suppress this error message. 

If you go ahead and use "--core-library" but are in fact 
building an application, then be forewarned that your application 
will still fail to build or run, at some point. Please be 
prepared for angry customers who find, for example, that your 
application ceases to function once they upgrade their operating 
system. You will be to blame for this problem. 

If you are legitimately using some code that happens to be in a 
core package, then the easiest safe alternative you have is to 
repackage that code. That is, move the classes in question into 
your own package namespace. This means that they will never be in 
conflict with core system classes. JarJar is a tool that may help 
you in this endeavor. If you find that you cannot do this, then 
that is an indication that the path you are on will ultimately 
lead to pain, suffering, grief, and lamentation. 

我不知道是什麼問題我按照this tutorial入門。有人能指出這個錯誤是什麼。什麼可以是這個錯誤的來源，我不能夠了解所有的步驟那裏導入所有的lib，並建立了路徑以及

Answer 1

http://code.google.com/p/libgdx/wiki/ProjectSetupNew。建立您的項目的鏈接。

http://www.youtube.com/watch?feature=player_embedded&v=mmH05k6HFsI。指向如何設置ligdx的教程的YouTube鏈接。

https://groups.google.com/forum/?fromgroups=#!topic/android-platform/abxNKTFkuj8。

"Conversion to Dalvik format failed with error 1" on external JAR

檢查，如果你有一個包含相同的包和類的構建路徑我的兩個JAR文件。刪除一個包。

嘗試清理並構建項目。

Answer 2

在我的情況下，Eclipse在覈心項目src中複製了gdx-backend-gwt.jar，當我刪除它時，問題已經消失。