demo真机调试小程序提示应用不存在

[ShawnFoo]

 [[NBServiceGet() appCenter] prepareApp:appID version:nil process:^(NAMAppPrepareStep step, id info) {

} finish:^(NAMApp *app, NSError *error) {
    if (!error) {
        dispatch_async(dispatch_get_main_queue(), ^{
            [NBServiceGet() startSession:@{@"appId":app.app_id, @"version":app.version, @"debug":@"framework"} animated:YES];
        });
    }
}];

使用真机调试执行上述代码时，提示:

rror Domain=nebulaappmanager_error_domain Code=10008 "app not exist" UserInfo={NSLocalizedDescription=app no[NBServiceGet() startSession:@{@"appId":app.app_id, @"version":app.version, @"debug":@"framework"} animated:YES];t exist}

后台已经发布了，这个是什么原因，另外有错误码文档吗？

额外一个问题，下面这两个方法有什么区别?

• [DTContextGet() startApplication:appID params:@{@"appId":appID,@"debug":@"framework"} animated:YES];
• [NBServiceGet() startSession:@{@"appId":app.app_id, @"version":app.version, @"debug":@"framework"} animated:YES];