Cuda 9.1 / VS2017 15.4 - Could not set up the environment Error

I am using vs2017 15.4.5 and Cuda 9.1 on Windows 10.

After successfully installing both, when I try and build one of the samples as a 64-bit app, I get the error shown below.

Any ideas what is causing this? My understanding was that vs2017 15.4 supported Cuda 9.1 (but not vs2017 15.5+). If I change the toolset to use v140 rather than v141, it all works ok. However, for the project that I am working on I need to use toolset v141.

1>Compiling CUDA source file cdpSimplePrint.cu...
1>
1>C:\ProgramData\NVIDIA Corporation\CUDA Samples\v9.1\0_Simple\cdpSimplePrint>"C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.1\bin\nvcc.exe" -gencode=arch=compute_35,code=\"sm_35,compute_35\" -gencode=arch=compute_37,code=\"sm_37,compute_37\" -gencode=arch=compute_50,code=\"sm_50,compute_50\" -gencode=arch=compute_52,code=\"sm_52,compute_52\" -gencode=arch=compute_60,code=\"sm_60,compute_60\" -gencode=arch=compute_61,code=\"sm_61,compute_61\" -gencode=arch=compute_70,code=\"sm_70,compute_70\" --use-local-env --cl-version 2017 -ccbin "C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\VC\Tools\MSVC\14.11.25503\bin\HostX86\x64" -x cu -rdc=true -I./ -I../../common/inc -I./ -I"C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.1\/include" -I../../common/inc -I"C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.1\include" -I"C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.1\include"     --keep-dir x64\Release -maxrregcount=0  --machine 64 --compile -cudart static -Xcompiler "/wd 4819"    -DWIN32 -DWIN32 -D_MBCS -D_MBCS -Xcompiler "/EHsc /W3 /nologo /O2 /FS /Zi  /MT " -o x64/Release/cdpSimplePrint.cu.obj "C:\ProgramData\NVIDIA Corporation\CUDA Samples\v9.1\0_Simple\cdpSimplePrint\cdpSimplePrint.cu"
1>cdpSimplePrint.cu
1>
1>C:\ProgramData\NVIDIA Corporation\CUDA Samples\v9.1\0_Simple\cdpSimplePrint>"C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.1\bin\nvcc.exe" -dlink -o x64/Release/cdpSimplePrint.device-link.obj -Xcompiler "/EHsc /W3 /nologo /O2 /Zi  /MT " -L"C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.1\lib\x64" cudadevrt.lib cudart_static.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib  -gencode=arch=compute_35,code=sm_35 -gencode=arch=compute_37,code=sm_37 -gencode=arch=compute_50,code=sm_50 -gencode=arch=compute_52,code=sm_52 -gencode=arch=compute_60,code=sm_60 -gencode=arch=compute_61,code=sm_61 -gencode=arch=compute_70,code=sm_70  --machine 64 x64/Release/cdpSimplePrint.cu.obj
1>nvcc fatal   : Could not set up the environment for Microsoft Visual Studio using 'C:/Program Files (x86)/Microsoft Visual Studio/2017/Enterprise/VC/Tools/MSVC/14.11.25503/bin/HostX86/x64/../../../../../../../VC/Auxiliary/Build/vcvars64.bat'
1>C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\Common7\IDE\VC\VCTargets\BuildCustomizations\CUDA 9.1.targets(793,9): error MSB3721: The command ""C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.1\bin\nvcc.exe" -dlink -o x64/Release/cdpSimplePrint.device-link.obj -Xcompiler "/EHsc /W3 /nologo /O2 /Zi  /MT " -L"C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.1\lib\x64" cudadevrt.lib cudart_static.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib  -gencode=arch=compute_35,code=sm_35 -gencode=arch=compute_37,code=sm_37 -gencode=arch=compute_50,code=sm_50 -gencode=arch=compute_52,code=sm_52 -gencode=arch=compute_60,code=sm_60 -gencode=arch=compute_61,code=sm_61 -gencode=arch=compute_70,code=sm_70  --machine 64 x64/Release/cdpSimplePrint.cu.obj" exited with code 1.
1>Done building project "cdpSimplePrint_vs2017.vcxproj" -- FAILED.