This error means that your app contains incorrect lisensing information.
Things you need to check are:
1.The app project contains licesnses.licx file
2.This licenses.licx file contains the line
Note that there should be no excessive version information. Othervise the licenses will be compiled for a specific version of RO SDK and once SDK version changes they won’t be considered as valid.
Here is a short overview of .NET licensing system. It mentions Hydra but the overall approach os more or less the same: Upgraded to H5, .NET plugins no longer load
Hope that helps