I get this when running .\GenerateProjectFiles.bat -2017 :
PS E:\git\UnrealEngine> .\GenerateProjectFiles.bat -2017
Setting up Unreal Engine 4 project files...
Binding IntelliSense data... 0%E:\git\UnrealEngine\Engine\Plugins\Runtime
Display\Source\DisplayCluster\DisplayCluster.Build.cs: warning: Referenced directory 'E:\git\UnrealEngine\Engine\Plugins\Runtime
Display\ThirdParty\VRPN\Include' does not exist.
100%
Writing project files... 100%
Is that ThirdParty directory something that Setup.bat should have pulled in? Setup.bat didn’t report any errors.
Edit:
the directory did exist, but had a different capitalization. I was able to run GenerateProjectFile.bat without the warning by renaming E:\git\UnrealEngine\Engine\Plugins\Runtime
Display\ThirdParty\Vrpn to E:\git\UnrealEngine\Engine\Plugins\Runtime
Display\ThirdParty\VRPN .
edit2:
For people running into it it seems to be either an issue with a windows update to WSL:
.com/Microsoft/WSL/issues/2937
If you do a git checkout it seems to set a case sensitivity flag on any created folders now. This is only an issue if you are using WSL (Windows Subsystem for Linux) to do the git checkout. They have changed it to have this case sensitivity stuff by default all of the sudden.
solution is:
set /etc/wsl.conf to:
[automount]
options=case=off