Experts,
When I was trying to build an XSJS application on HCP (trial version) using this http://scn.sap.com/community/developer-center/cloud-platform/blog/2013/10/17/8-easy-steps-to-develop-an-xs-application-on-the-sap-hana-cloud-platform and was trying to run the XS application, I got below error message 
Error while executing query: [dberror(Connection.prepareStatement): 258 - insufficient privilege: Not authorized at ptime/query/checker/query_check.cc:2422]
While searching solutions in this SCN, I got a number of similar threads on this regard ( 
) , and tried to address by adjusting below files
1. .xsprivileges
{
"privileges" :
[
{ "name" : "Basic", "description" : "Basic usage privilege" },
{ "name" : "Execute", "description" : "Basic execution privilege" }
]
}
2. model_access.hdbrole
role xxxxxxtrial.hanainstancesom.ProjectA::model_access {
application privilege: xxxxxtrial.hanainstancesom.ProjectA::Basic;
application privilege: xxxxxtrial.hanainstancesom.ProjectA::Execute;
catalog schema "NEO_5HEFUYKK25VF3EPY5G0LLNJ5F": SELECT, EXECUTE;
catalog sql object "_SYS_BIC"."xxxxxtrial.hanainstancesom.ProjectA/SO_CV": SELECT;
sql object xxxxxtrial.hanainstancesom.ProjectA:SO_CV.calculationview : SELECT;
}
and finally granted the roles to my user (account user), by executing following code in SQL Console itself
call "HCP"."HCP_GRANT_ROLE_TO_USER"('xxxxxxxtrial.hanainstancesom.ProjectA::model_access','xxxxxxxtrial');
Still, no luck!!!
Can anyone provide solution on how to fix the above issue?
Warm Regards
Som