CreateDesignDocument() exception

On a Windows 7 x64 VM, single node cluster, Couchbase 2.0 beta, freshly downloaded and installed, I am getting the following exception:
System.Net.WebException was unhandled
HResult=-2146233079
Message=The remote server returned an error: (500) Internal Server Error.
Source=System
StackTrace:
at System.Net.HttpWebRequest.GetResponse()
at Couchbase.Helpers.HttpHelper.doRequest(Uri uri, String verb, String username, String password, String postData, String contentType) in c:\Cloud\Platform\PlatformSpike\Reference Assemblies\Couchbase\Couchbase\Helpers\HttpHelper.cs:line 77
at Couchbase.Helpers.HttpHelper.Put(Uri uri, String username, String password, String postData, String contentType) in c:\Cloud\Platform\PlatformSpike\Reference Assemblies\Couchbase\Couchbase\Helpers\HttpHelper.cs:line 42
at Couchbase.Management.CouchbaseCluster.CreateDesignDocument(String bucket, String name, String document) in c:\Cloud\Platform\PlatformSpike\Reference Assemblies\Couchbase\Couchbase\Management\CouchbaseCluster.cs:line 115
at Platform.Data.Couchbase.Provisioning.CouchbaseProvisioning.CreateDesignDocument(String bucketName, String name, DesignDocument document) in c:\Cloud\Platform\PlatformSpike\Platform.Data.Couchbase.Provisioning\ProvisioningClient.cs:line 217
at Platform.Data.Couchbase.Provisioning.CouchbaseProvisioning.Execute() in c:\Cloud\Platform\PlatformSpike\Platform.Data.Couchbase.Provisioning\ProvisioningClient.cs:line 56
at CouchbaseUpdater.Program.Main(String[] args) in c:\Cloud\Platform\PlatformSpike\CouchbaseUpdater\Program.cs:line 26
InnerException:

The server log contains the following entry, but I'm not sure if it is related:
Client-side error-report for user "admin" on node 'ns_1@192.168.54.178':
User-Agent:Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; WOW64; Trident/6.0)
Got unhandled error: Object doesn't support this action
At: http://192.168.54.178:8091/js/cells.js:64
Backtrace:
Function: collectBacktraceViaCaller
Args:
---------
Function: appOnError
Args:
"Object doesn't support this action"
"http://192.168.54.178:8091/js/cells.js"
64
30
---------
Function: (function ()

{throw e;}

)
Args:
---------
(repeated 1 times)

Those are the parameters to the doRequest() method:
uri = http://192.168.54.178:8092/tenants/_design/tenant_views
verb = PUT
contentType = application/json
username = admin
password = password
postData =
{
"views": {
"tenants_all": {
"map": "function(doc,meta) \r\n{\r\n\tif (doc.Schema === \"tenant\") \r\n\t

{ \r\n\t\temit(meta.id, null); \r\n\t}

\r\n}"
},
"tenants_by_status": {
"map": "function (doc,meta) \r\n{ \r\n\tif (doc.Schema === \"tenant\" && doc.Status) \r\n\t

{ \r\n\t\temit(doc.Status, null); \r\n\t}

\r\n}"
},
"tenants_by_user_application_instance": {
"map": "function(doc,meta) \r\n{\r\n\tif (doc.Schema === \"tenant\" && doc.UserId && doc.TenantIdentifiers && identifier.Status === 1) \r\n\t{ \r\n\t\tfor (var i = 0; i < doc.TenantIdentifiers.length; i++) \r\n\t\t{\r\n\t\t\tvar identifier = doc.TenantIdentifiers[i];\r\n\t\t\tif (identifier.ApplicationInstanceId)\r\n\t\t\t

{\r\n\t\t\t\temit([doc.UserId, identifier.ApplicationInstanceId], null); \r\n\t\t\t}

\r\n\t\t}\r\n\t} \r\n}"
}
}
}

On the client I am using the compiled latest .NET source code from GitHub with no modifications.