Compiling on linux broken

[ddt7]

/home/user/ngsuite/ngsolve-src/ngstd/ngstd.hpp:131:27: fatal error: core/ngcore.hpp: No such file or directory
Merge branch 'ngcore' into 'master' 3 days ago
maybe this caused the issue?

[Matthias Hochsteger]

Did you update the submodules (i.e. Netgen) after doing a git pull?
> git submodule update --recursive

[ddt7]

I am following instructions from:
https://ngsolve.org/docu/latest/install/installlinux.html

I did:
cd $BASEDIR/ngsolve-src
git submodule update --init --recursive

I have tried also to pull the last release and run:
~/ngsuite/ngsolve-build$ make
........................
[ 30%] Built target netgen_project
[ 10%] Performing check_submodules1 step for 'netgen'
[ 20%] Performing build step for 'netgen'
[ 9%] Built target gen
...........................
[100%] Built target ngpy
[ 30%] No install step for 'netgen'
[ 40%] Completed 'netgen'
........................
[ 99%] Built target ngsolve
[ 99%] Linking CXX executable ngs
../comp/libngcomp.so: undefined reference to `void netgen::Ngx_Mesh::MultiElementTransformation<0, 3, double __vector(4)>(int, int, double __vector(4) const*, unsigned long, double __vector(4), unsigned long, double __vector(4), unsigned long) const'

[Matthias Hochsteger]

I assume the first issue is resolved now?

The second issue appears when you have the NGSolve Ubuntu package installed. You need to remove it before compiling your own version. After removing the package, clean the build directory and configure with CMake again.

[ddt7]

Thanks. I did not want to compile sources,
I installed the NGSolve in ubuntu using apt-get install and just wanted to use netgen in python
e.g.
from netgen.meshing import *
from netgen.csg import *
from ngsolve import ngsglobals

BUT after install i don't see the python library bindings, so i thought maybe compiling from source will help.
Didn't see any PIP install instruction in documentation
I managed to conda install netgen but not ngsolve
Can i import Netgen and NGSolve from my code in python without running netgen application. And how?
Thanks

[Christopher Lackner]

The conda netgen is not maintained by us, afaik it ships without gui and without NGSolve. What do you mean by not seeing the python library bindings? Does the above code not execute and what errors do you get?
There is neither a pip installer nor a conda one available yet. It is on the wish list, but the dependency on togl and therefore some tk internal headers makes that a little messy...
But using the installer and then executing a python script with

python3 script.py

should work.
Best
Christopher