GenerateDepsFile task failed unexpectedly

#1

Hello,

All of a sudden, building with Travis is failing. travis.yml hasn’t been modified between then and now. The error message is as follows:

/usr/share/dotnet/sdk/2.1.401/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Sdk.targets(129,5): error MSB4018: The “GenerateDepsFile” task failed unexpectedly. [/home/travis/build/opentk/opentk/src/OpenTK.Input/OpenTK.Input.csproj]

This project builds fine both locally and on AppVeyor. The project can be found here: