Unfortunately that error doesn't really provide any additional information 
useful for debugging.  We've got an issue filed in GitHub to get that replaced 
with something more meaningful (and not a crash dump).  This will be addressed 
for the next release.  

What's happening here is that the S3 command to the Riak CS cluster is failing 
for some reason; to rule out a Riak CS Control vs. Riak CS/stanchion 
configuration issue, can you try to retrieve the user listing manually using a 
S3 tool (in the same manner that the UI does)?

You can find information about retrieving the user listing here:

https://github.com/basho/riak_cs/wiki/User-Management

- Chris

--  
Christopher Meiklejohn
Software Engineer
Basho Technologies, Inc.



On Tuesday, July 2, 2013 at 8:35 PM, Guy Morton wrote:

> Done, and all apps restarted. No difference.  
>  
> Here's what I get in the logs:
>  
> 2013-07-02 17:32:53.578 [error] <0.12662.0> webmachine error: path="/users"
> {"create_path not a 
> string",{error,{error,badarg,[{erlang,binary_to_list,[undefined],[]},{riak_cs_control_wm_users,extract_key_id,1,[{file,"src/riak_cs_control_wm_users.erl"},{line,60}]},{riak_cs_control_wm_users,create_path,2,[{file,"src/riak_cs_control_wm_users.erl"},{line,68}]},{webmachine_resource,resource_call,3,[{file,"src/webmachine_resource.erl"},{line,183}]},{webmachine_resource,do,3,[{file,"src/webmachine_resource.erl"},{line,141}]},{webmachine_decision_core,resource_call,1,[{file,"src/webmachine_decision_core.erl"},{line,48}]},{webmachine_decision_core,decision,1,[{file,"src/webmachine_decision_core.erl"},{line,440}]},{webmachine_decision_core,handle_request,2,[{file,"src/webmachine_decision_core.erl"},{line,33}]}]}}}
>  
>  
> --
> Guy Morton
> Web Development Manager
> Brüel & Kjær EMS
>  
> ________________________________________
> From: Christopher Meiklejohn [cmeiklej...@basho.com 
> (mailto:cmeiklej...@basho.com)]
> Sent: Wednesday, 3 July 2013 12:59 AM
> To: Guy Morton
> Cc: riak-users@lists.basho.com (mailto:riak-users@lists.basho.com)
> Subject: Re: Riak-CS-Control
>  
> Hi Guy,
>  
> Can you try changing cs_proxy_host and cs_proxy_port to the same values as 
> cs_hostname and cs_port? Right now, it's configured for localhost and a port 
> that Riak CS is not listening on.
>  
> I believe you are experiencing the same issue as outlined here:
>  
> https://github.com/basho/riak_cs_control/issues/31
>  
> - Chris
>  
> --
> Christopher Meiklejohn
> Software Engineer
> Basho Technologies, Inc.
>  
>  
>  
> On Tuesday, July 2, 2013 at 3:36 AM, Guy Morton wrote:
>  
> > Hi Chris
> >  
> > The video didn't include any information that I hadn't figured out. My 
> > problem is that I can't get it to work. I get the nice riak-cs admin page 
> > in my browser on port 8000 but it shows no users (perhaps reasonable 
> > because I only have succeeded in creating a single user so far - the admin 
> > user) and the create user function fails (with the error previously 
> > mentioned).
> >  
> > I've sent you my config files, though since then I've tried what feels like 
> > a thousand variants all to no avail. If the config is wrong enough riak-cs 
> > won't start, and when it does I can't do a thing.
> >  
> > I'm sure Riak cs is a great product, once it's set up! I just don't seem to 
> > be able to get over that hurdle.
> >  
> > --
> > Guy Morton
> > Web Development Manager
> > Brüel & Kjær EMS
> >  
> > ________________________________________
> > From: Christopher Meiklejohn [cmeiklej...@basho.com 
> > (mailto:cmeiklej...@basho.com)]
> > Sent: Monday, 1 July 2013 4:26 PM
> > To: Guy Morton
> > Cc: riak-users@lists.basho.com (mailto:riak-users@lists.basho.com)
> > Subject: Re: Riak-CS-Control
> >  
> > Hi Guy,
> >  
> > Here is a good video introduction to configuring Riak CS Control:
> >  
> > http://basho.com/getting-started-with-riak-cs-control/
> >  
> > Let me know if you run into any specific issues and I'm happy to help. I'm 
> > also lurking in the #riak room on Freenode (nick: cmeiklejohn) if you need 
> > further help (any of us should be able to!)
> >  
> > - Chris
> >  
> > --
> > Christopher Meiklejohn
> > Software Engineer
> > Basho Technologies, Inc.
> >  
> >  
> >  
> > On Monday, July 1, 2013 at 2:14 AM, Guy Morton wrote:
> >  
> > > Also, I just found this - riak-cs-control... None of the install/config 
> > > documents I saw previously mentioned it, or that it should be configured, 
> > > or how. It seems to control the web interface referred to in my last 
> > > email...
> > >  
> > > Where is the most up-to-date info about Riak CS and how to set it up? I 
> > > am trying to set it up on Debian squeeze and I'm still floundering. I 
> > > seem very close to having it working, but not quite. It's a bit 
> > > frustrating! Is it just me, or is it complex to get working?
> > >  
> > > --
> > > Guy Morton
> > > Web Development Manager
> > > Brüel & Kjær EMS
> > > This e-mail is confidential and may be read, copied and used only by the 
> > > intended recipient. If you have received it in error, please contact the 
> > > sender immediately by return e-mail. Please then delete the e-mail and do 
> > > not disclose its contents to any other person.
> > >  
> > > _______________________________________________
> > > riak-users mailing list
> > > riak-users@lists.basho.com (mailto:riak-users@lists.basho.com)
> > > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
> >  
> >  
> >  
> >  
> >  
> >  
> >  
> >  
> > This e-mail is confidential and may be read, copied and used only by the 
> > intended recipient. If you have received it in error, please contact the 
> > sender immediately by return e-mail. Please then delete the e-mail and do 
> > not disclose its contents to any other person.
>  
>  
>  
> This e-mail is confidential and may be read, copied and used only by the 
> intended recipient. If you have received it in error, please contact the 
> sender immediately by return e-mail. Please then delete the e-mail and do not 
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