android – JacksonParser数据绑定和核心导致“找到APK的重复文件”？

jackson-core-2.2.0.jar
 jackson-annotations-2.2.0.jar
 jackson-databind-2.2.0.jar

在代码中,我只是尝试将json解析为对象数组：

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    String json = ReadFromraw(this,R.raw.json);
    ArrayList<Category> categories = null;
    try {
        ObjectMapper mapper = new ObjectMapper(); 
        categories = mapper.readValue(json,mapper.getTypeFactory().constructCollectionType(List.class,Category.class));
        // categories = mapper.readValue(json,new TypeReference<List<Category>>() {});
    } catch (Exception e) {
        Log.e("MainActivity","Error: " + e.getMessage());
    }

    SimpleListView myList = (SimpleListView) findViewById(R.id.myList);
    myList.setAdapterWithItems(GetAdapter(categories));
}

不确定是否有必要,但这里也是我的Category类：

@JsonIgnoreProperties({ "displayPriority" })
public class Category {

    @JsonProperty("Id")
    private String categoryId;

    @JsonProperty("name")
    private String categoryName;

    public String getCategoryId() {
        return categoryId;
    }

    public void setCategoryId(String categoryId) {
        this.categoryId = categoryId;
    }

    public String getCategoryName() {
        return categoryName;
    }

    public void setCategoryName(String categoryName) {
        this.categoryName = categoryName;
    }

}

一切似乎都没问题,没有错误或警告.但是当我尝试编译时,它会给出这个错误：

[2013-04-25 09:32:08 - Training - JacksonParser] Error generating final archive: Found duplicate file for APK: LICENSE
Origin 1: C:\~\workspace\Training - JacksonParser\libs\jackson-core-2.2.0.jar
Origin 2: C:\~\workspace\Training - JacksonParser\libs\jackson-databind-2.2.0.jar

当我在谷歌上搜索这个错误时,它说这些jar文件有一些共同点.我不知道该怎么做……有什么我做错了吗？或者我做了一些缺失的事情

在此先感谢,任何帮助表示赞赏.