Fix "nvcc fatal : Could not set up the environment for Microsoft Visual Studio"

[mat46ias]

• OpenCV => 4.3.0
• Operating System / Platform => Windows 64 Bit
• Compiler => Visual Studio 2019

Detailed description

Hi! I'm trying to buil OpenCV from source with CUDA v10.2. I'm followgin the steps from this website:

https://jamesbowley.co.uk/accelerate-opencv-4-3-0-build-with-cuda-and-python-bindings/?unapproved=22839&moderation-hash=3a2ab3aba913aa8519aaf53a0a431bf0#comment-22839

When I reach the part of building the solution I get the following error:

Building NVCC (Device) object modules/world/CMakeFiles/cuda_compile_1.dir/__/core/src/cuda/Release/cuda_compile_1_gen erated_gpu_mat.cu.obj
nvcc fatal : Could not set up the environment for Microsoft Visual Studio using ‘C:/Program Files (x86)/Microsoft Visual Studio/2019/Community/VC/Tools/MSVC/14.26.28801/bin/Hostx64/x64/../../../../../../../VC/Auxiliary/Build/vcvars64.bat
CMake Error at cuda_compile_1_generated_gpu_mat.cu.obj.Release.cmake:220 (message):
Error generating
D:/OpenCV/opencv-4.3.0/build/modules/world/CMakeFiles/cuda_compile_1.dir/__/core/src/cuda/Release/cuda_compile_1_ge nerated_gpu_mat.cu.obj

I really don't know how to fix this...

[rui-ren]

Hi, did you solve it? I came across the same issue. have no idea how to fix it

[rui-ren]

Hi there, not sure if you solved this issue or not. I fixed this problem by update CUDA to 10.2 and

Make sure add all this path to environment path. Then it should be ok!

[johncaling40]

Hi there, not sure if you solved this issue or not. I fixed this problem by update CUDA to 10.2 and

Make sure add all this path to environment path. Then it should be ok!

I added all 5 of those paths to the path variable and still error.

[jamesratzlaff]

Make sure your PATH, INCLUDE, LIB, and LIBPATH environment variables do not have any quotes in them

[johncaling40]

They dont

…

On Tue, Nov 3, 2020 at 3:30 PM James Ratzlaff ***@***.***> wrote: Make sure your PATH, INCLUDE, LIB, and LIBPATH environment variables do not have any quotes in them — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#17440 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AQHBYCY3NS3XCJLGTCCPEQ3SOBR5HANCNFSM4NPJ5I4Q> .

[jamesratzlaff]

I believe any variable that has double quotes (and those quotes are not escaped with a backslash) that gets used in a build/compile/link command can cause this. Double check vars used in your CMakeCache as well. One thing you can try is is setting the environment variable VSCMD_DEBUG=3 and running the full nvcc commmand that keeps failing.

[johncaling40]

Still no luck

…

On Wed, Nov 4, 2020 at 7:42 PM James Ratzlaff ***@***.***> wrote: I believe *any* variable that has double quotes (and those quotes are not escaped with a backslash) that gets used in a build/compile/link command can cause this. Double check vars used in your CMakeCache as well. One thing you can try is removing is setting the environment variable VSCMD_DEBUG=3 and running the full nvcc commmand that keeps failing. — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#17440 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AQHBYCZWE5QC3EGYCW6GY4LSOHYG3ANCNFSM4NPJ5I4Q> .

[jamesratzlaff]

What is the output when you run the nvcc command?

[johncaling40]

Error. No input files specified.

…

On Thu, Nov 5, 2020 at 11:49 AM James Ratzlaff ***@***.***> wrote: What is the output when you run the nvcc command? — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#17440 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AQHBYC7CGIAW6NKJ7J3PNTTSOLJTHANCNFSM4NPJ5I4Q> .

[TauCeti0207]

I have the same problem
I am trying to update the cuda to 11.5....