This error is actually returned by the web server you're uploading the files onto. I suppose its configuration somehow leads to 550 response status. You can try reconfiguring the server or manually uploading the updated project files.
I also want to use this opportunity to let you know that the Mobile Website
projects will soon be discontinued
in Telerik Platform
. Later this year, we will be releasing Telerik Platform 2.0
- a new app-centric interface for Telerik Platform
that makes it extremely fast to integrate cloud services into your app development process. With this change, we're putting the focus into the development of hybrid and native mobile applications and we will therefore be moving the mobile websites development out of Telerik Platform
. That, however, doesn't mean that we will no longer work towards a unified approach for mobile development on all fronts - hybrid, native and web. On the contrary, we are already working on a major initiative to enable a pure web development approach
to building apps that run responsively on desktop and mobile browsers, so stay tuned fore more info on that front.
In the meantime, please check out this announcement post
and join us in the upcoming webinar
on December, 3rd. You can also take a sneak-peek at the new look and feel of Telerik Platform 2.0 here