Error importing ArcGIS Pro and MATLAB libraries together in Python

KarneshJain — Wed, 26 Oct 2022 18:33:56 GMT

Hello everyone,

I am having an issue in setting up a Python environment to run MATLAB and ArcGIS Pro together. I have cloned the Python environment from ArcGIS and installed MATLAB Engine API within the cloned conda environment. I am unable to import ArcGIS python libraries (such as arcpy, arcgisscripting) after importing matlab.engine and vice versa as well. However, I am able to import matlab.engine or ArcGIS libraries separately. Below are the errors that I receive when I import these libraries

1. Importing matlab.engine after arcpy –

>>> import arcpy >>> import matlab.engine Traceback (most recent call last): File "<stdin>", line 1, in <module> File "C:\Users\kjain1\AppData\Local\ESRI\conda\envs\arcgispro-py3-ALOFT\lib\site-packages\matlab\engine\__init__.py", line 77, in <module> raise EnvironmentError(secondExceptionMessage) OSError: Please reinstall MATLAB Engine for Python or contact MathWorks Technical Support for assistance: First issue: DLL load failed while importing matlabengineforpython3_9: The specified procedure could not be found. Second issue: DLL load failed while importing matlabengineforpython3_9: The specified procedure could not be found.

2. Importing arcpy after matlab.engine –

>>> import matlab.engine >>> import arcpy Traceback (most recent call last): File "<stdin>", line 1, in <module> File "C:\Program Files\ArcGIS\Pro\Resources\ArcPy\arcpy\__init__.py", line 77, in <module> from arcpy.geoprocessing import gp File "C:\Program Files\ArcGIS\Pro\Resources\ArcPy\arcpy\geoprocessing\__init__.py", line 14, in <module> from ._base import * File "C:\Program Files\ArcGIS\Pro\Resources\ArcPy\arcpy\geoprocessing\_base.py", line 14, in <module> import arcgisscripting File "C:\Users\kjain1\AppData\Local\ESRI\conda\envs\arcgispro-py3-ALOFT\lib\site-packages\arcgisscripting\__init__.py", line 131, in <module> from ._arcgisscripting import * ImportError: DLL load failed while importing _arcgisscripting: The specified procedure could not be found.

I have installed ArcGIS Pro 3.0.2, MATLAB R2022B and the Python version is 3.9.13.

How do I resolve this DLL error?

Thanks

Re: Error importing ArcGIS Pro and MATLAB libraries together in Python

AaronAverett1 — Thu, 05 Oct 2023 22:29:14 GMT

Were you ever able to solve this?

I'm running into the same issue, working on a script that I need to be able to launch as a tool within ArcGIS Pro, that then calls a Matlab script, which I unfortunately can't convert over to Python.

Oddly, if I just run my Python script from the command line, it works as expected, so it seems like it must be related to a DLL that ArcGIS Pro loads that conflicts with one that the Matlab engine wants.

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Error importing ArcGIS Pro and MATLAB libraries together in Python

Re: Error importing ArcGIS Pro and MATLAB libraries together in Python