Unable to install TeamCity add-in for Visual Studio 2017

Using...

• Visual Studio Enterprise 2017 (with all latest updates)
• Windows Server 2016
• TeamCity Enterprise 10.0.5 (build 42677)

I am trying to install the Visual Studio add-in so I can run a personal build and the installer fails. I have tried both running it as administrator and as my non-admin user account. Both attempts fail with the same errors.

The installer I get when I download from the TeamCity server is TeamCityVsAddinSetup.web.exe. When launched it shows it is part of Resharper 2018.1. The only component I have selected to install is the TeamCity add-in for VS.

I've uploaded my installer log via your web form: InstallerLog_2018-05-01T14-03-08.txt

The first error I see is a failure to load some platform utility assembly.

14:05:08.147 |E| IsolatedBuildRunnerEngineRequest| Cannot resolve runtime assembly by assembly name JetBrains.Platform.Util, Version=111.0.0.0, Culture=neutral, PublicKeyToken=1010a0d8d6380325. Could not load file or assembly 'JetBrains.Platform.Util, Version=111.0.0.0, Culture=neutral, PublicKeyToken=1010a0d8d6380325' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)

From there it just goes downhill.