I have seen a lot of older versions of this issue for python 3.7-3.9 but none with any solution that has worked, and none for python 3.10 which is the new default for new conda environments. I have installed fenics and mshr in a new conda environment as follows:
conda create -n fenics -c conda-forge fenics mshr
I am able to import fenics, but this happens when I try to import mshr:
>>> import fenics
>>> import mshr
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/jmetzger/anaconda3/envs/fenics/lib/python3.10/site-packages/mshr/__init__.py", line 24, in <module>
from .cpp import Circle
ImportError: generic_type: type "CSGGeometry" referenced unknown base type "dolfin::Variable"
Here is the output of conda list
# packages in environment at /home/jmetzger/anaconda3/envs/fenics:
#
# Name Version Build Channel
_libgcc_mutex 0.1 conda_forge conda-forge
_openmp_mutex 4.5 2_gnu conda-forge
binutils_impl_linux-64 2.36.1 h193b22a_2 conda-forge
binutils_linux-64 2.36 hf3e587d_10 conda-forge
boost-cpp 1.74.0 h75c5d50_8 conda-forge
bzip2 1.0.8 h7f98852_4 conda-forge
c-ares 1.18.1 h7f98852_0 conda-forge
ca-certificates 2022.5.18.1 ha878542_0 conda-forge
cmake 3.23.2 h5432695_0 conda-forge
eigen 3.4.0 h4bd325d_0 conda-forge
expat 2.4.8 h27087fc_0 conda-forge
fenics 2019.1.0 py310hff52083_30 conda-forge
fenics-dijitso 2019.1.0 py310hff52083_30 conda-forge
fenics-dolfin 2019.1.0 py310h583d6c0_30 conda-forge
fenics-ffc 2019.1.0 py310hff52083_30 conda-forge
fenics-fiat 2019.1.0 py310hff52083_30 conda-forge
fenics-libdolfin 2019.1.0 hd78bcf9_30 conda-forge
fenics-ufl 2019.1.0 py310hff52083_30 conda-forge
fftw 3.3.10 mpi_mpich_h8b92f0a_2 conda-forge
gcc_impl_linux-64 10.3.0 hf2f2afa_16 conda-forge
gcc_linux-64 10.3.0 hc39de41_10 conda-forge
gmp 6.2.1 h58526e2_0 conda-forge
gmpy2 2.1.2 py310h92f7908_0 conda-forge
gxx_impl_linux-64 10.3.0 hf2f2afa_16 conda-forge
gxx_linux-64 10.3.0 h2593f52_10 conda-forge
hdf5 1.12.1 mpi_mpich_h5d83325_4 conda-forge
hypre 2.24.0 mpi_mpich_hed3a557_1 conda-forge
icu 70.1 h27087fc_0 conda-forge
kernel-headers_linux-64 2.6.32 he073ed8_15 conda-forge
keyutils 1.6.1 h166bdaf_0 conda-forge
krb5 1.19.3 h08a2579_0 conda-forge
ld_impl_linux-64 2.36.1 hea4e1c9_2 conda-forge
libblas 3.9.0 15_linux64_openblas conda-forge
libcblas 3.9.0 15_linux64_openblas conda-forge
libcurl 7.83.1 h2283fc2_0 conda-forge
libedit 3.1.20191231 he28a2e2_2 conda-forge
libev 4.33 h516909a_1 conda-forge
libffi 3.4.2 h7f98852_5 conda-forge
libgcc-devel_linux-64 10.3.0 he6cfe16_16 conda-forge
libgcc-ng 12.1.0 h8d9b700_16 conda-forge
libgfortran-ng 12.1.0 h69a702a_16 conda-forge
libgfortran5 12.1.0 hdcd56e2_16 conda-forge
libgomp 12.1.0 h8d9b700_16 conda-forge
liblapack 3.9.0 15_linux64_openblas conda-forge
libnghttp2 1.47.0 he49606f_0 conda-forge
libnsl 2.0.0 h7f98852_0 conda-forge
libopenblas 0.3.20 pthreads_h78a6416_0 conda-forge
libsanitizer 10.3.0 h26c7422_16 conda-forge
libssh2 1.10.0 ha35d2d1_2 conda-forge
libstdcxx-devel_linux-64 10.3.0 he6cfe16_16 conda-forge
libstdcxx-ng 12.1.0 ha89aaad_16 conda-forge
libuuid 2.32.1 h7f98852_1000 conda-forge
libuv 1.43.0 h7f98852_0 conda-forge
libzlib 1.2.12 h166bdaf_0 conda-forge
lz4-c 1.9.3 h9c3ff4c_1 conda-forge
metis 5.1.0 h58526e2_1006 conda-forge
mpc 1.2.1 h9f54685_0 conda-forge
mpfr 4.1.0 h9202a9a_1 conda-forge
mpi 1.0 mpich conda-forge
mpi4py 3.1.3 py310h37cc914_1 conda-forge
mpich 4.0.2 h846660c_100 conda-forge
mpmath 1.2.1 pyhd8ed1ab_0 conda-forge
mshr 2019.1.0 py310hffed6ae_5 conda-forge
mumps-include 5.2.1 ha770c72_11 conda-forge
mumps-mpi 5.2.1 h7ee95aa_11 conda-forge
ncurses 6.3 h27087fc_1 conda-forge
numpy 1.22.4 py310h4ef5377_0 conda-forge
openssl 3.0.3 h166bdaf_0 conda-forge
parmetis 4.0.3 h2a9763c_1005 conda-forge
petsc 3.17.2 real_h6ce3b2e_102 conda-forge
petsc4py 3.17.2 real_h5faf7bb_100 conda-forge
pip 22.1.2 pyhd8ed1ab_0 conda-forge
pkg-config 0.29.2 h36c2ea0_1008 conda-forge
pkgconfig 1.5.5 py310hff52083_2 conda-forge
ptscotch 6.0.9 hb499603_2 conda-forge
pybind11 2.9.2 py310hbf28c38_1 conda-forge
pybind11-global 2.9.2 py310hbf28c38_1 conda-forge
python 3.10.4 h2660328_0_cpython conda-forge
python_abi 3.10 2_cp310 conda-forge
readline 8.1.2 h0f457ee_0 conda-forge
rhash 1.4.1 h7f98852_0 conda-forge
scalapack 2.2.0 hd931219_1 conda-forge
scotch 6.0.9 hb2e6521_2 conda-forge
setuptools 62.3.4 py310hff52083_0 conda-forge
six 1.16.0 pyh6c4a22f_0 conda-forge
slepc 3.17.1 real_ha2e80f3_101 conda-forge
slepc4py 3.17.1 real_h7df52cc_102 conda-forge
sqlite 3.38.5 h4ff8645_0 conda-forge
suitesparse 5.10.1 h9e50725_1 conda-forge
superlu 5.2.2 h00795ac_0 conda-forge
superlu_dist 7.2.0 h25dcc4a_0 conda-forge
sympy 1.10.1 py310hff52083_0 conda-forge
sysroot_linux-64 2.12 he073ed8_15 conda-forge
tbb 2021.5.0 h924138e_1 conda-forge
tk 8.6.12 h27826a3_0 conda-forge
tzdata 2022a h191b570_0 conda-forge
wheel 0.37.1 pyhd8ed1ab_0 conda-forge
xz 5.2.5 h516909a_1 conda-forge
yaml 0.2.5 h7f98852_2 conda-forge
zlib 1.2.12 h166bdaf_0 conda-forge
zstd 1.5.2 h8a70e8d_1 conda-forge
Again, I have tried the other solutions with various combinations of fenics and mshr builds and nothing has worked. I usually get the same issue, but with some builds of fenics I am unable to import fenics as well (missing certain libraries or files).