OfflineWebApplicationConnection returns a "person cannot be found" exception

Question

When I tried to access data via a offline app, I met this
"The unique identifier 32c78874-8e4e-4e04-bfcc-20a99d25b240 for the person cannot be found."
my code is as below :
Guid callingAppId = new Guid("30972d0e-2d58-4041-9bcc-6d1eb2626580");
Guid offlinePersonId = new Guid("32c78874-8e4e-4e04-bfcc-20a99d25b240");
Guid recordId = new Guid("ec67da02-5d77-4306-9061-2feed0fca187");
string serviceUrl = "https://platform.healthvault-ppe.com/platform/";
WebApplicationCredential cred = new WebApplicationCredential(callingAppId);
OfflineWebApplicationConnection con = new OfflineWebApplicationConnection(cred,callingAppId,serviceUrl,offlinePersonId);
con.Authenticate();
con.RequestTimeoutSeconds = 300;
HealthRecordAccessor accessor = new HealthRecordAccessor(con, offlinePersonId);
// var records = con.GetAuthorizedRecords();
HealthRecordSearcher searcher = accessor.CreateSearcher();
HealthRecordFilter filter = new HealthRecordFilter(Height.TypeId);
searcher.Filters.Add(filter);
HealthRecordItemCollection recs = searcher.GetMatchingItems()[0];
the appId , personId , and recordId are all got from a online app
while the online app works quite well, I've no idea what's going wrong with my offline one.
Anyone can help or share the same experience?
Many Thanks.

Answer 1

Hello
What was happening is the following as of lot of errors in sharepoint they are not very descriptive “Group
cannot be found” mean that group had no permission within site, to be accessible the group should have at least read permission within the site.
 So if you create new group or your using group with no access, you will have the error
Resolution :
Give permission to your group on the site
J
Cheers
Momo