Failed to load 'BleWinrtDll.dll' because one or more of its dependencies could not be loaded. about blewinrtdll

[marianylund]

Thank you, @adabru, the issue was that the Dll project had to be configured for UWP as @ShumWengSang so kindly pointed out in this issue.
I have created a fork of this repository and updated Unity Project to be ready for HoloLens 2 build together with the Dlls for Unity Editor and HoloLens. Also Arduino code is included if anyone will be interested: https://github.com/marianylund/BleWinrtDll.
Hope this will help the next HoloLens enthusiasts! ;D

[adabru]

Hi @marianylund , you probably need to install the visual studio redistributable from https://support.microsoft.com/en-us/topic/the-latest-supported-visual-c-downloads-2647da03-1eea-4433-9aff-95f26a218cc0 . Maybe you will also hit #11 . I don't have experience with the HoloLens. If you encounter HoloLens-specific problems, you could try to contact the poster from that issue.