无法使用Dropbox Java SDK进行授权

Question

我开始开发一些Dropbox应用。我坚持授权。 这是我的代码：

package ubox.model;

import com.dropbox.core.*;

import java.util.Locale;


public class DXauth 
{
    private DbxWebAuthNoRedirect webAuth; 

    public void auth() //throws IOException, DbxException
    {
        final String APP_KEY = "foo";
        final String APP_SECRET = "foo";

        DbxAppInfo appInfo = new DbxAppInfo(APP_KEY, APP_SECRET);

        DbxRequestConfig config = new DbxRequestConfig("JavaTutorial/1.0", Locale.getDefault().toString());

        webAuth = new DbxWebAuthNoRedirect(config, appInfo);

    }



    public String getAuthorizeUrl()
    {
        return webAuth.start();
    }

}

我收到了这样的错误消息：

Exception in thread "main" java.lang.NoClassDefFoundError: com/fasterxml/jackson/core/JsonParseException
    at com.dropbox.core.DbxAppInfo.<clinit>(DbxAppInfo.java:112)
    at ubox.model.DXauth.auth(DXauth.java:17)
    at Main.main(Main.java:17)
Caused by: java.lang.ClassNotFoundException: com.fasterxml.jackson.core.JsonParseException
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
    ... 3 more

我已经包含了从dropbox构建路径的jar。有什么建议？感谢。