Hello, This means that you are missing some .jars in your classpath. I'm not an expert on Google App Engine with Java, you should ask on their forum where to put the .jars and how to set your classpath.
Best, Alain On Tue, May 22, 2012 at 11:09 AM, Cesar <[email protected]> wrote: > I've created a web applicattion in eclipse with app engine, is an example > with contacts, but when I deploy my app, i get the error: > java.lang.NoClassDefFoundError: com/google/gdata/client/GoogleService > > at com.google.appengine.runtime.Request.process-3cbbd54696308062(Request.java) > at java.lang.ClassLoader.defineClass1(Native Method) > at java.lang.ClassLoader.defineClass(ClassLoader.java:634) > at > java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) > > ....... > > I've installed the library of gdata located in > http://code.google.com/p/gdata-java-client/downloads/list. > > Mi code is the following: > > import com.google.appengine.api.users.User; > import com.google.appengine.api.users.UserService; > import com.google.appengine.api.users.UserServiceFactory; > import com.google.gdata.client.GoogleService; > import com.google.gdata.client.*; > import com.google.gdata.client.contacts.ContactsService; > import com.google.gdata.client.contacts.*; > import com.google.gdata.data.*; > import com.google.gdata.data.contacts.ContactFeed; > import com.google.gdata.data.contacts.*; > import com.google.gdata.data.extensions.*; > import com.google.gdata.util.*; > > import java.io.BufferedReader; > import java.io.IOException; > import java.io.InputStreamReader; > import java.net.URL; > > import javax.servlet.http.HttpServlet; > import javax.servlet.http.HttpServletRequest; > import javax.servlet.http.HttpServletResponse; > > public class Testeando extends HttpServlet { > public void doGet(HttpServletRequest req, HttpServletResponse resp) throws > IOException { > resp.getWriter().println("testing"); > try { > ContactsService myService = new ContactsService("example"); > > } catch (Exception e) { > resp.getWriter().println(e.getMessage()); > } > } > } > > The error ocurrs at: ContactsService myService = new > ContactsService("example"); > > Please help me what happend with my code or what I have to do? > > -- > You received this message because you are subscribed to the Google > Groups "Google Contacts, Shared Contacts and User Profiles APIs" group. > To post to this group, send email to > [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://code.google.com/apis/contacts/community/forum.html > -- Alain Vongsouvanh | Developer Programs Engineer -- You received this message because you are subscribed to the Google Groups "Google Contacts, Shared Contacts and User Profiles APIs" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://code.google.com/apis/contacts/community/forum.html
