Details of my channel not returned forUsername

[GoogleCodeExporter]

Please provide any additional information below.

I entered in  part: contentDetails
and entered in forUsername: MartinUpelnieks   == My channel name

and when clicked - Execute - it did not returned all information it returned 
only: 

200 OK
- Show headers -
{
 "kind": "youtube#channelListResponse",
 "etag": "\"Y3xTLFF3RLtHXX85JBgzzgp2Enw/3cxjRXf86G9z5Bg7rup3QfCgrxM\"",
 "pageInfo": {
  "totalResults": 0,
  "resultsPerPage": 5
 },
 "items": [
 ]
}

----- However when I entered - forUsername: GoogleDevelopers
as I follow tutorials it returns all required information as follows:

200 OK
- Show headers -

{
 "kind": "youtube#channelListResponse",
 "etag": "\"Y3xTLFF3RLtHXX85JBgzzgp2Enw/8SEUwKelrqHehoM7_2t5MWZY3T8\"",
 "pageInfo": {
  "totalResults": 1,
  "resultsPerPage": 5
 },
 "items": [
  {

   "kind": "youtube#channel",
   "etag": "\"Y3xTLFF3RLtHXX85JBgzzgp2Enw/Il2dF5SRdky6_tqanN3hNuDyfxc\"",
   "id": "UC_x5XG1OV2P6uZZ5FSM9Ttw",
   "contentDetails": {
    "relatedPlaylists": {
     "uploads": "UU_x5XG1OV2P6uZZ5FSM9Ttw"
    },
    "googlePlusUserId": "111395306401981598462"
   }
  }
 ]
}

=== My Question is how I can get information for my channel if it does not 
work, how to resolve this issue.

My email: martinwebdeveloper@gmail.com

Kind Regards,

Martin Upelnieks

Original issue reported on code.google.com by martinwe...@gmail.com on 25 Jun 2015 at 8:38