It appears that Microsoft had updated the way Windows 10 IOT works in the latest version which broke the NuGet package for our libraries. I have updated the NuGet package and it should now install with the package manager using the following command:
Install-Package ABElectronics_Win10IOT_Libraries -Version 1.2.7048.20748
If you still have trouble installing the package you can download the package from our GitHub repository at https://github.com/abelectronicsuk/ABElectronics_Win10IOT_Libraries
Copy the ABElectronics_Win10IOT_Libraries/bin/Release/ABElectronics_Win10IOT_Libraries.dll file into your project directory and add a reference to it in the References folder.
You should then be able to reference the library by adding the line below to the top of your code.