While trying to deploy themes using the TenThemesForSharePoint pack I kept on getting this error.

• Error 1 The content type text/html; charset=utf-8 of the response message does not match the content type of the binding (text/xml; charset=utf-8). If using a custom encoder, be sure that the IsContentTypeSupported method is implemented properly. The first 1024 bytes of the response were: ...'

What I found was I needed to manually navigate to the VseWSS WCF service on my Sharepoint server to have it loaded, and then do the deploy. To do this, open a browser window and navigate to "http://yourserver:1378/SPService.svc"

This should open the service page with the link to the WSDL and some sample code. It also loads the service so the deploy can now run.