google endpoint client library methods cannot execute

[user3814438 via StackOverflow]

I have entity class User .

I generated endpoints classes and client library successfully.

I made the email attribute as the Id .

when invoking the getUser() int the android project like this:

 Userendpoint.Builder builder=new Userendpoint.Builder(AndroidHttp.newCompatibleTransport(), new GsonFactory(), null);
                 Userendpoint service=builder.build();
                com.mycompany.services.userendpoint.model.User user=new User();
                user=service.getUser("*****@hotmail.com").execute();

I got this error:

07-14 12:19:00.380  30153-30180/com.emcloud.app W/System.err﹕ com.google.api.client.googleapis.json.GoogleJsonResponseException: 404 Not Found
07-14 12:19:00.380  30153-30180/com.emcloud.app W/System.err﹕ Not Found
07-14 12:19:00.380  30153-30180/com.emcloud.app W/System.err﹕ at com.google.api.client.googleapis.services.json.AbstractGoogleJsonClientRequest.newExceptionOnError(AbstractGoogleJsonClientRequest.java:113)
07-14 12:19:00.390  30153-30180/com.emcloud.app W/System.err﹕ at com.google.api.client.googleapis.services.json.AbstractGoogleJsonClientRequest.newExceptionOnError(AbstractGoogleJsonClientRequest.java:40)
07-14 12:19:00.390  30153-30180/com.emcloud.app W/System.err﹕ at com.google.api.client.googleapis.services.AbstractGoogleClientRequest$1.interceptResponse(AbstractGoogleClientRequest.java:312)
07-14 12:19:00.390  30153-30180/com.emcloud.app W/System.err﹕ at com.google.api.client.http.HttpRequest.execute(HttpRequest.java:1045)
07-14 12:19:00.390  30153-30180/com.emcloud.app W/System.err﹕ at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:410)
07-14 12:19:00.390  30153-30180/com.emcloud.app W/System.err﹕ at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:343)
07-14 12:19:00.390  30153-30180/com.emcloud.app W/System.err﹕ at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.execute(AbstractGoogleClientRequest.java:460)

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even I have one deployed version of the project on app engine. when Running My android project it cannot enter the .execute() method........ and it stop execution at this method

Please DO NOT REPLY directly to this email but go to StackOverflow:
http://stackoverflow.com/questions/24733418/google-endpoint-client-library-methods-cannot-execute

[user3814438 via StackOverflow]

I have an entity class User.

I generated endpoints classes and client library successfully.

I made the email attribute as the Id.

When invoking the getUser() int the android project like this:

Userendpoint.Builder builder = new Userendpoint.Builder(AndroidHttp.newCompatibleTransport(), new GsonFactory(), null);
Userendpoint service = builder.build();
com.mycompany.services.userendpoint.model.User user = new User();
user = service.getUser("*****@hotmail.com").execute();

I got this error:

07-14 12:19:00.380  30153-30180/com.emcloud.app W/System.err﹕ com.google.api.client.googleapis.json.GoogleJsonResponseException: 404 Not Found
07-14 12:19:00.380  30153-30180/com.emcloud.app W/System.err﹕ Not Found
07-14 12:19:00.380  30153-30180/com.emcloud.app W/System.err﹕ at com.google.api.client.googleapis.services.json.AbstractGoogleJsonClientRequest.newExceptionOnError(AbstractGoogleJsonClientRequest.java:113)
07-14 12:19:00.390  30153-30180/com.emcloud.app W/System.err﹕ at com.google.api.client.googleapis.services.json.AbstractGoogleJsonClientRequest.newExceptionOnError(AbstractGoogleJsonClientRequest.java:40)
07-14 12:19:00.390  30153-30180/com.emcloud.app W/System.err﹕ at com.google.api.client.googleapis.services.AbstractGoogleClientRequest$1.interceptResponse(AbstractGoogleClientRequest.java:312)
07-14 12:19:00.390  30153-30180/com.emcloud.app W/System.err﹕ at com.google.api.client.http.HttpRequest.execute(HttpRequest.java:1045)
07-14 12:19:00.390  30153-30180/com.emcloud.app W/System.err﹕ at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:410)
07-14 12:19:00.390  30153-30180/com.emcloud.app W/System.err﹕ at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:343)
07-14 12:19:00.390  30153-30180/com.emcloud.app W/System.err﹕ at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.execute(AbstractGoogleClientRequest.java:460)

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Even I have one deployed version of the project on app engine. When Running my android project it cannot enter the execute() method. And it stops execution at this method.