DLL load failed while importing solid for manual installation on Windows

[Oussamaaat]

(python 3.11.3 windows)

when running python -c "import pysolid; print(pysolid.__version__)"
i get 0.3.2 which means pysolid was installed succesfully ?
when i run python PySolid/tests/grid.py i get the following error :

---

D:\test_gnss\PySolid\tests\grid.py
Traceback (most recent call last):
File "D:\test_gnss\gnss\Lib\site-packages\pysolid\grid.py", line 45, in calc_solid_earth_tides_grid
from pysolid.solid import solid_grid
ImportError: DLL load failed while importing solid: The specified module could not be found.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "D:\test_gnss\PySolid\tests\grid.py", line 33, in
tide_u) = pysolid.calc_solid_earth_tides_grid(dt_obj, atr, verbose=True)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\test_gnss\gnss\Lib\site-packages\pysolid\grid.py", line 50, in calc_solid_earth_tides_grid
raise ImportError(msg)
ImportError: Cannot import name 'solid' from 'pysolid'!
Maybe solid.for is NOT compiled yet.
Check instruction at: https://github.com/insarlab/PySolid.

[yunjunz]

My guess is that the solid.for is not compiled as well. How did you install the code?

[Oussamaaat]

i used the 3rd option below, it seemed to have compiled it but i'll try again today... thank you for your feedback!!
any suggestions for compilers on windows ?

# option 3: manually compile the Fortran code and setup environment variable
cd PySolid/src/pysolid
f2py -c -m solid solid.for
export PYTHONPATH=${PYTHONPATH}:~/tools/PySolid

[yunjunz]

I would recommend using conda/mamba install directly, instead of compiling it yourself, which can be buggy. I have not tried it on windows before.

[Oussamaaat]

thanks, i tried conda but the error is still there.. i think the .for file is not compiled successfully... i'll see if i can install it on linux wsl

[flex0902]

thanks, i tried conda but the error is still there.. i think the .for file is not compiled successfully... i'll see if i can install it on linux wsl

Well.....I have the same issue. I used conda to install all requested packages (successed).

To install Pysolid,

1. First I use "python -m pip install PySolid", the error message is below:
   .....
   Building wheel for PySolid (pyproject.toml) ... error
   error: subprocess-exited-with-error
   × Building wheel for PySolid (pyproject.toml) did not run successfully.
   │ exit code: 1
   ╰─> [20 lines of output]
   *** scikit-build-core 0.9.8 using CMake 3.30.0 (wheel)
   *** Configuring CMake...
   2024-07-18 15:09:13,582 - scikit_build_core - WARNING - Can't find a Python library, got libdir=None, ldlibrary=None, multiarch=None, masd=None
   loading initial cache file C:\Users\201113~1\AppData\Local\Temp\tmp7pzmcsae\build\CMakeInit.txt
   -- Building for: NMake Makefiles
   CMake Error at CMakeLists.txt:5 (project):not compiled successfully
   Running

     'nmake' '-?'
   
    failed with:
   
     no such file or directory
   

   CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage
   CMake Error: CMAKE_Fortran_COMPILER not set, after EnableLanguage
   -- Configuring incomplete, errors occurred!

   *** CMake configuration failed
   [end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed building wheel for PySolid
Failed to build PySolid
ERROR: Could not build wheels for PySolid, which is required to install pyproject.toml-based projects

it seems something wrong in the pyproject.toml. Anyway, can't work.

2. If I use " f2py -c -m solid solid.for "
   ERROR: Unable to detect linker for compiler flang -Wl,--version
   stdout:
   stderr: flang.exe: warning: unable to find a Visual Studio installation; try running Clang from a developer command prompt [-Wmsvc-not-found]
   flang.exe: error: unable to execute command: program not executable
   flang.exe: error: linker command failed with exit code 1 (use -v to see invocation)

Therefore, I think "solid.for" is not compiled successfully. The problem could be the commands to built the solid.for . Does anyone know the output after successful compile the solid.for....

[flex0902]

I change to install gcc version 13.2.0 and GNU fortran 13.2.0 (Rev6, Built by MSYS2 project)
and manually compile the Fortran code and setup environment variable
python -m numpy.f2py -c solid.for -m soild
but it failed at the last step, " FAILED: soild.cp312-win_amd64.pyd"
The message is below:
........
The Meson build system
Version: 1.5.0
Source dir: C:\Users\201113Z10\AppData\Local\Temp\tmppf_ohmsa
Build dir: C:\Users\201113Z10\AppData\Local\Temp\tmppf_ohmsa\bbdir
Build type: native build
Project name: soild
Project version: 0.1
Fortran compiler for the host machine: gfortran (gcc 13.2.0 "GNU Fortran (Rev6, Built by MSYS2 project) 13.2.0")
Fortran linker for the host machine: gfortran ld.bfd 13.2.0
C compiler for the host machine: cc (gcc 13.2.0 "cc (Rev6, Built by MSYS2 project) 13.2.0")
C linker for the host machine: cc ld.bfd 13.2.0
Host machine cpu family: x86_64
Host machine cpu: x86_64
Program C:\Users\201113Z10\AppData\Local\Programs\Python\Python312\python.exe found: YES (C:\Users\201113Z10\AppData\Local\Programs\Python\Python312\python.exe)
Run-time dependency python found: YES 3.12
Library quadmath found: YES
Build targets in project: 1

Found ninja-1.11.1.git.kitware.jobserver-1 at C:\Users\201113Z10\AppData\Local\Programs\Python\Python312\Scripts\ninja.EXE
INFO: autodetecting backend as ninja
INFO: calculating backend command to run: C:\Users\201113Z10\AppData\Local\Programs\Python\Python312\Scripts\ninja.EXE -C C:/Users/201113Z10/AppData/Local/Temp/tmppf_ohmsa/bbdir
ninja: Entering directory `C:/Users/201113Z10/AppData/Local/Temp/tmppf_ohmsa/bbdir'
[5/6] Compiling Fortran object soild.cp312-win_amd64.pyd.p/solid.for.obj
../solid.for:1464:10:

1464 | it1=365.25d0*y
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:1465:10:

1465 | it2=30.6001d0*(m+1)
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:1487:9:

1487 | ia=(rjd+0.5d0)
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:1489:9:

1489 | ic=(ib-122.1d0)/365.25d0
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:1490:9:

1490 | id=365.25d0*ic
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:1491:9:

1491 | ie=(ib-id)/30.6001d0
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:1496:10:

1496 | it1=ie*30.6001d0
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:1497:10:

1497 | idy=ib-id-it1+fmjd
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:1498:10:

1498 | it2=ie/14.d0
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:1500:10:

1500 | it3=(7+imo)/10.d0
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:1504:10:

1504 | ihr=tmp
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:1506:10:

1506 | imn=tmp
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:1351:10:

1351 | it1=365.25d0*y
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:1352:10:

1352 | it2=30.6001d0*(m+1)
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:1125:13:

1125 | i = ghad/360.d0
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:1387:10:

1387 | it1=365.25d0*y
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:1388:10:

1388 | it2=30.6001d0*(m+1)
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:1411:10:

1411 | mjd=mjd0+tsec/86400.d0
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:1416:9:

1416 | ia=(rjd+0.5d0)
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:1418:9:

1418 | ic=(ib-122.1d0)/365.25d0
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:1419:9:

1419 | id=365.25d0*ic
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:1420:9:

1420 | ie=(ib-id)/30.6001d0
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:1425:10:

1425 | it1=ie*30.6001d0
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:1426:10:

1426 | idy=ib-id-it1+fmjd
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:1427:10:

1427 | it2=ie/14.d0
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:1429:10:

1429 | it3=(7+imo)/10.d0
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:1433:10:

1433 | ihr=tmp
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:1435:10:

1435 | imn=tmp
| 1
Warning: Possible change of value in conversion from REAL(8) to INTEGER(4) at (1) [-Wconversion]
../solid.for:736:34:

736 | subroutine step2lon(xsta,fhr,t,xcorsta)
| 1
Warning: Unused dummy argument 'fhr' at (1) [-Wunused-dummy-argument]
[6/6] Linking target soild.cp312-win_amd64.pyd
FAILED: soild.cp312-win_amd64.pyd
............

[flex0902]

Finally, I manually compiled the Fortran code in Windows 11 ...after 3 days.
Here is my steps.

1. Install anaconda and create environment of Python 3.10.

   conda create --name py310 python=3.10

2. Install Visual Studio community 2022 and Intel® oneAPI Base Toolkit for the c and fortran compiler. (https://visualstudio.microsoft.com/zh-hant/vs/ ; https://www.intel.com/content/www/us/en/developer/tools/oneapi/base-toolkit-download.html)
   I also get the information to install the c and fortran compiler using PIP install, but I didn't try. (https://www.intel.com/content/www/us/en/docs/oneapi/installation-guide-windows/2024-2/pip.html#LIST-OF-AVAILABLE-PACKAGES)
   install Visual Studio community 2022 ---> choose C++ desktop environment
   remember the number of win11 SDK 10.0.22621.0
   
   you may need to restart the computer, to launch the environmental setting.

3. Execute Anaconda prompt with administrator privileges (right click on Anaconda prompt and select as administrator) and activate the environment py310.

   conda activate py310

   install some dependencies required using pip.

   pip install meson
   pip install numpy
   pip install scipy
   pip install scikit_build_core
   pip install setuptools_scm
   pip install matplotlib
   conda install -c conda-forge pysolid

Now, you may install the pysolid 0.3.2 successfully. The package of pysolid is in the path as:
C:\Users\flex0\anaconda3\envs\py310\Lib\site-packages\pysolid
C:\Users\flex0\anaconda3\envs\py310\Lib\site-packages\pysolid-0.3.2.dist-info

However, when using the following and it will show "DLL load failed..."
(something like that....so I try to manually compiling the soild.for)

python -c "import pysolid; print(pysolid.version)"

After you download the source code and go to the folder "pysolid-0.3.3\src\pysolid"
There is solid.for in the folder.

f2py -c -m solid solid.for

If it find the c and fortran compiler, it will like figure below:

You will have error messages as below:
C:\Users\flex0\anaconda3\envs\py310\include\pyconfig.h(59): fatal error C1083: �L�k�}�ҥ]�t�ɮ�: 'io.h': No such file or directory

To solve the error messages and the number in the path is the win SDK number:

>set INCLUDE=C:\Program Files (x86)\Windows Kits\10\Include\10.0.22621.0\ucrt;C:\Program Files (x86)\Windows Kits\10\bin\10.0.22621.0\x64

>set LIB=C:\Program Files (x86)\Windows Kits\10\Lib\10.0.22621.0\um\x64;C:\Program Files (x86)\Windows Kits\10\Lib\10.0.22621.0\ucrt\x64;C:\Program Files (x86)\Intel\oneAPI\compiler\2024.2\lib

Copy "rc.exe" and "rcdll.dll" from C:\Program Files (x86)\Windows Kits\10\bin\10.0.22621.0\x64
to C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.40.33807\bin\Hostx86\x64\

Again,
> f2py -c -m solid solid.for
and no error messages.

You will get a " solid.cp310-win_amd64.pyd" with the original files of "solid.for", " init.py", "grid.py", "point.py" in the folder.

4. Copy these files "solid.cp310-win_amd64.pyd", "solid.for", " init.py", "grid.py", "point.py"
   to C:\Users\flex0\anaconda3\envs\py310\Lib\site-packages\pysolid
   (before replace the files in the folder, you can backup the original files)

5. Change the name of the folder: C:\Users\flex0\anaconda3\envs\py310\Lib\site-packages\pysolid-0.3.2.dist-info
   into C:\Users\flex0\anaconda3\envs\py310\Lib\site-packages\pysolid-0.3.3.dist-info

6. Edit METADATA in C:\Users\flex0\anaconda3\envs\py310\Lib\site-packages\pysolid-0.3.3.dist-info

Check you have install pysolid 0.3.3

>python -c "import pysolid; print(pysolid.__version__)"

and no DLL load faile.......

7. In python code (.py) to import pysolid in grid mode.
   use:
   from pysolid.solid import solid_grid

Hope you guys success!
Only for python 3.10, not works for python 3.12