When opening existing projects from my company, i always get the following message in my output log:

error: Designtime build failed for project ‘<path to project>’, configuration ‘Debug|VisualGDB’. IntelliSense might be unavailable.
Set environment variable TRACEDESIGNTIME=true and restart Visual Studio to investigate.

Likewise, every time i switch configurations, i get flooded with dozens of

error : Designtime build failed for project ‘<path to project>’ configuration ‘Release|VisualGDB’. IntelliSense might be unavailable.
Set environment variable TRACEDESIGNTIME = true and restart Visual Studio to investigate.

A fresh new project does not seem to have this problem.

If i set the variable mentioned, the log file created ends with this error:

Assembly loaded during TaskRun (Sysprogs.Build.Tasks.ResolveGNUIncludeDirectories): Microsoft.GeneratedCode, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null (location: , MVID: ad2b3579-2626-4ec2-9313-39e0b1670340, AppDomain: [Default])
VisualGDBCore version: 6.1.103.5547
System.Exception
System.Exception: VisualGDB Host is not initialized properly
at bd4.c()
at bd4.d(ProjectSettingsFileInfo b, Boolean a)
at VisualGDB.MSBuild.BuildHelper..ctor(String vgdbSettingsFile, String projectNameOrFile, IDELevelProjectInfoForBuilding info, ISimpleFormattedBuildLogLineSink rawSink, MSBuildActionType type, EventWaitHandle abortEvent)
at Sysprogs.Build.Tasks.ResolveGNUIncludeDirectories.Execute()
trace=[bd4.c:107, bd4.d:0, VisualGDB.MSBuild.BuildHelper..ctor:39, Sysprogs.Build.Tasks.ResolveGNUIncludeDirectories.Execute:295]
C:\Program Files (x86)\Sysprogs\VisualGDB\MSBuild\SysprogsPlatform.targets(239,2): error : VisualGDB Host is not initialized properly
Done executing task “ResolveGNUIncludeDirectories” — FAILED.

I have attached one such log file.

The project compiles  just fine. VC++ intellisense does not seem to work, though the clang one does.

Any pointers on what i can try next?