ERROR: Neither directory contains a build file meson.build when compiling source code for version 8.0.1 on HPC

[plaad]

Hi All,

I have previous compiled the source code from scratch for a prior version of SU2, but when following the installation procedure for the current case, I am currently not able to finish the compilation step due to the error:

`Submodule path 'externals/mel': checked out '46205ab019e5224559091375a6d71aabae6bc5b9'
Initialize submodule /work/sidgs/codes/su2_8.0.1/SU2/subprojects/MLPCpp using git ...
Submodule 'subprojects/MLPCpp' (https://github.com/EvertBunschoten/MLPCpp.git) registered for path 'subprojects/MLPCpp'
Cloning into '/work/sidgs/codes/su2_8.0.1/SU2/subprojects/MLPCpp'...
Submodule path 'subprojects/MLPCpp': checked out '665c45b7d3533c977eb1f637918d5b8b75c07d3b'
ninja executable not found. Building ...
bootstrapping ninja...
warning: A compatible version of re2c (>= 0.11.3) was not found; changes to src/*.in.cc will not affect your build.
wrote build.ninja.
bootstrap complete. rebuilding...
[29/29] LINK ninja

ERROR: Neither directory contains a build file meson.build.`

However, the file is present in the installation directory and path I set in my env variables. I am building/running the meson.py code with the following command and options:

./meson.py build configure -Denable-autodiff=true -Denable-directdiff=true -Denable-pywrapper=true -Dwith-mpi=enabled -Dwith-omp=true -Denable-cgns=true -Denable-tecio=true -Denable-mkl=true -Denable-pastix=false -Dcustom-mpi=true -Dextra-deps=mpich --prefix=/work/sidgs/codes/su2_8.0.1/SU2/
I am installing this on a Red Hat cluster which has modules for the requisite Intel compilers, Python, and MPICH/MPI. For prior versions, this worked, but for the recent update, it does not and gives this error. Does anyone know if there are conflicting flags/things I should try? I tried deleting the SU2 folder and re-cloning it and the same issue occurs even though the meson.build. file is present. Apologies if a similar post was also posted before as I must have missed it in haste.

Thank you.

[plaad]

Do I need to set the path to this specifically somehow if it is not automatically finding it in $SU2_HOME?