Building C# 7 with TeamCity

We have started using some new language features from C# 7 lately and then some builds on Team City started failing. Luckily I remembered my post from the time we started using C# 6 features. You can find that post here

error CS1003: Syntax error, ',' expected

The builds were using the Visual Studio sln build configuration and was set to Visual Studio 2015. I changed this to Visual Studio 2017, but then there was no compatible agent. I then installed the Build Tools for Visual Stuido 2017 and restarted the agents, now everything is working as expected.

You find the Build Tools for Visual Studio 2017 here. Scroll all the way to the bottom and you find the download link or just search for Build tools.