Unable to change Team repository Main Branch with Bitbucket API 1.0.

#!python

RonCYJ@RonCYJ-HP MINGW64 ~
$ curl -X PUT -u rchiateam1:<Password> -H "Content-Type: application/json" https://api.bitbucket.org/1.0/repositories/rchiateam1/test -d &#x27;{"main_branch": "master"}&#x27; #TeamID and API Key
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   175  100   150  100    25     69     11  0:00:02  0:00:02 --:--:--    76<ul class="errorlist"><li>project<ul class="errorlist"><li>Select a valid choice. That choice is not one of the available choices.</li></ul></li></ul>

RonCYJ@RonCYJ-HP MINGW64 ~
$ curl -X PUT -u AannSmMbGdcNKZw38r:<Secret> -H "Content-Type: application/json" https://api.bitbucket.org/1.0/repositories/rchiateam1/test -d &#x27;{"main_branch": "master"}&#x27; #OAuth
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100    25    0     0  100    25      0     11  0:00:02  0:00:02 --:--:--    13

RonCYJ@RonCYJ-HP MINGW64 ~
$ curl -X PUT -u ronaldchia:<Password> -H "Content-Type: application/json" https://api.bitbucket.org/1.0/repositories/rchiateam1/test -d &#x27;{"main_branch": "master"}&#x27; # Team Admin with App password
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   175  100   150  100    25     72     12  0:00:02  0:00:02 --:--:--    80<ul class="errorlist"><li>project<ul class="errorlist"><li>Select a valid choice. That choice is not one of the available choices.</li></ul></li></ul>