Howdy ,
Thank you for reporting this issue. I am going to need a bit more information before I begin investigating. Would this be a previous project that has been converted into one of the preview builds? Would you be using Package and Deploy or Launch On when you are seeing this error?
Would you be able to replicate this issue on a blank project or does this only occur on the project that you have been working on?
Any additional information would be greatly appreciated.
Thanks and have a great day!