When I use API to create a user, I get an error! And this time I use the galaxy instance from galaxy-central. The command is: #curl -d '{"username":"test","password":"test","email":"123@123.com"}' http://myip:8080/api/users?key=my_key I get some information: And the web server give me some error information: galaxy.web.framework ERROR 2014-01-14 17:18:42,257 Uncaught exception in exposed API method: Traceback (most recent call last): File "/galaxy-central/lib/galaxy/web/framework/__init__.py", line 197, in decorator rval = func( self, trans, *args, **kwargs) File "/galaxy-central/lib/galaxy/webapps/galaxy/api/users.py", line 97, in create username = payload[ 'username' ] KeyError: 'username' 10.10.10.1 - - [14/Jan/2014:17:18:42 +0800] "POST /api/users?key=e2424e1d238292b5dfe4e3fdcc411dd1 HTTP/1.1" 500 - "-" "curl/7.15.5 (x86_64-redhat-linux-gnu) libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5" I don't know why it happened. Please help me to fix this error. Thank you!