could not open some source file while ‘wmake’

[zhanggh97]

I was learning Openfoam9 by Ubuntu-20.04 in WSL.
I created a new folder named ‘solver’ in $WM_PROJECT_USER_DIR and I copyed the folder 'icoFoam' to it.
When I used the command 'wmake', the system told me:

Making dependency list for source file icoFoam.C
could not open file fvmSup.C for source file icoFoam.C due to No such file or directory
could not open file gaussGrad.H for source file icoFoam.C due to No such file or directory
g++ -std=c++14 -m64 -Dlinux64 -DWM_ARCH_OPTION=64 -DWM_DP -DWM_LABEL_SIZE=32 -Wall -Wextra -Wold-style-cast -Wnon-virtual-dtor -Wno-unused-parameter -Wno-invalid-offsetof -Wno-attributes -O3 -DNoRepository -ftemplate-depth-100 -g -I/home/zhanggh/OpenFOAM/OpenFOAM-9/src/finiteVolume/lnInclude -I/home/zhanggh/OpenFOAM/OpenFOAM-9/src/meshTools/lnInclude -IlnInclude -I. -I/home/zhanggh/OpenFOAM/OpenFOAM-9/src/OpenFOAM/lnInclude -I/home/zhanggh/OpenFOAM/OpenFOAM-9/src/OSspecific/POSIX/lnInclude -fPIC -c icoFoam.C -o Make/linux64GccDPInt32Opt/icoFoam.o
In file included from /home/zhanggh/OpenFOAM/OpenFOAM-9/src/finiteVolume/lnInclude/fvcGrad.H:124,
from /home/zhanggh/OpenFOAM/OpenFOAM-9/src/finiteVolume/lnInclude/fvc.H:49,
from /home/zhanggh/OpenFOAM/OpenFOAM-9/src/finiteVolume/lnInclude/fvCFD.H:8,
from icoFoam.C:32:
/home/zhanggh/OpenFOAM/OpenFOAM-9/src/finiteVolume/lnInclude/fvcGrad.C:29:10: fatal error: /home/zhanggh/OpenFOAM/OpenFOAM-9/src/finiteVolume/lnInclude/gaussGrad.H: Permission denied
29 | #include "gaussGrad.H"
| ^~~~~~~~~~~~~
compilation terminated.
make: *** [/home/zhanggh/OpenFOAM/OpenFOAM-9/wmake/rules/General/transform:26: Make/linux64GccDPInt32Opt/icoFoam.o] Error 1

I checked the permission of 'gaussGrad.H' and 'fvmSup.C', and both of them are 777.
Does anyone know this problem and how to fix it?

[zhanggh97]

By the way, I used to add some comments in these two source files with VS2019. Is that the reason?

[dimvlastos]

I just tried to do the same thing and it compiles without an issue. Your main OF source code compiles ok?

[zhanggh97]

I just tried to do the same thing and it compiles without an issue. Your main OF source code compiles ok?

It's ok. I tested the case 'cavity' in folder tutorial. There was no error to run the icoFoam.

[zhanggh97]

The problem is solved.
When I used VS to modified the linux file in WSL, the permission of file was destroyed.
The file gaussGrad.H in folder 'lnInclude' is just a symbolic link and the real file is in the ../finiteVolume/finiteVolume/gradSchemes/gaussGrad.
I just checked the symbolic link whose permission is 777 but the real file's permission has been destroyed.
After I use 'chmod' to change the real file's permission to 644, the problem was gone.